Bump gatsby from 2.15.12 to 2.15.16

Bumps [gatsby](https://github.com/gatsbyjs/gatsby) from 2.15.12 to 2.15.16.
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/compare/gatsby@2.15.12...gatsby@2.15.16)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

yarn.lock

@@ -7241,10 +7241,10 @@ functional-red-black-tree@^1.0.1:
   resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
   integrity sha1-GwqzvVU7Kg1jmdKcDj6gslIHgyc=
 
-gatsby-cli@^2.7.46:
-  version "2.7.46"
-  resolved "https://registry.yarnpkg.com/gatsby-cli/-/gatsby-cli-2.7.46.tgz#35f24372e6442f2a9dfab5cd9281b6f939c6d1f9"
-  integrity sha512-x1dhKjJeHpnDWVTyuIAGDCQMfUQErd3xcGIMy1yhvNc9WXKWegSC8DBG98FMMii1jwaM6ttKTMT4JwpAwI/W7w==
+gatsby-cli@^2.7.47:
+  version "2.7.47"
+  resolved "https://registry.yarnpkg.com/gatsby-cli/-/gatsby-cli-2.7.47.tgz#3e490b1c930345f7e1cc759f8cfcab36b878e1b4"
+  integrity sha512-dDVrbTjxzUwugOnnI/MDFZruYie5KW+t+XmLrG2L4ZjKBrAT6G2wsiPS+NwHiConqfTx67xoFAp54++C8+iWXg==
   dependencies:
     "@babel/code-frame" "^7.5.5"
     "@babel/runtime" "^7.6.0"
@@ -7292,10 +7292,10 @@ gatsby-core-utils@^1.0.8:
   resolved "https://registry.yarnpkg.com/gatsby-core-utils/-/gatsby-core-utils-1.0.8.tgz#e765a1338d65ff1de65238c7f0a9967e07da20fa"
   integrity sha512-080Jl8NamTbCGliKxXpMjEO1XUYU5FAow+VPR/j6hJk+Kl/gFmpE1mqa5QnHRGLZQhBP/h2T0mUwnSJn9m/Jsw==
 
-gatsby-graphiql-explorer@^0.2.14:
-  version "0.2.14"
-  resolved "https://registry.yarnpkg.com/gatsby-graphiql-explorer/-/gatsby-graphiql-explorer-0.2.14.tgz#25bddef7e6127f723182059c6fc49bcae70d07db"
-  integrity sha512-OYNd6llC+ZOSvG2YV0oY4/IVPa9Mi5ykBVey0KjJfDDK8lHwVfuD/ev2baX4KClRZkSjFtYuhDq5+Ro316Mfxg==
+gatsby-graphiql-explorer@^0.2.16:
+  version "0.2.16"
+  resolved "https://registry.yarnpkg.com/gatsby-graphiql-explorer/-/gatsby-graphiql-explorer-0.2.16.tgz#b105988f2934a4b16b7ee65a0333df4a78b55ff5"
+  integrity sha512-DtT12tkI21kB/ITUEcHtce+lQjb9x2no4gfEqKhPa7uz0EPvkIJaWYXpDNLof9T63jOC5Dnwp8wQPXWKpFXzBQ==
   dependencies:
     "@babel/runtime" "^7.6.0"
 
@@ -7466,13 +7466,13 @@ gatsby-telemetry@^1.1.23:
     uuid "3.3.3"
 
 gatsby@^2.4.6:
-  version "2.15.12"
-  resolved "https://registry.yarnpkg.com/gatsby/-/gatsby-2.15.12.tgz#db36ea5ce9429576ffac7c0546a4a65f0be353cb"
-  integrity sha512-5GBu7m+ULVY6IEujPmGWdPfqgq2eQeRC6AGuAlj1tM5Eu2b8UeM0yVoWOoZ9JdmeuukV5BOFsRQxCyv6DRrIFg==
+  version "2.15.16"
+  resolved "https://registry.yarnpkg.com/gatsby/-/gatsby-2.15.16.tgz#b175e30a9dac100239bdc664998b11349fcd1dcd"
+  integrity sha512-34UrlZFDiws70DSLm31WvUqewEVoXuNDmCetR8Gixucsvm35a11hTQ6TDI21cyQKipTw5kgcH/sUstkxaZ3WFA==
   dependencies:
     "@babel/code-frame" "^7.5.5"
     "@babel/core" "^7.6.0"
-    "@babel/parser" "^7.5.5"
+    "@babel/parser" "^7.6.0"
     "@babel/polyfill" "^7.6.0"
     "@babel/runtime" "^7.6.0"
     "@babel/traverse" "^7.6.0"
@@ -7530,16 +7530,16 @@ gatsby@^2.4.6:
     flat "^4.1.0"
     fs-exists-cached "1.0.0"
     fs-extra "^8.1.0"
-    gatsby-cli "^2.7.46"
+    gatsby-cli "^2.7.47"
     gatsby-core-utils "^1.0.8"
-    gatsby-graphiql-explorer "^0.2.14"
+    gatsby-graphiql-explorer "^0.2.16"
     gatsby-link "^2.2.13"
     gatsby-plugin-page-creator "^2.1.17"
     gatsby-react-router-scroll "^2.1.8"
     gatsby-telemetry "^1.1.23"
     glob "^7.1.4"
     got "8.3.2"
-    graphql "^14.5.4"
+    graphql "^14.5.6"
     graphql-compose "^6.3.5"
     graphql-playground-middleware-express "^1.7.12"
     invariant "^2.2.4"
@@ -7574,7 +7574,7 @@ gatsby@^2.4.6:
     raw-loader "^0.5.1"
     react-dev-utils "^4.2.3"
     react-error-overlay "^3.0.0"
-    react-hot-loader "^4.12.12"
+    react-hot-loader "^4.12.13"
     redux "^4.0.4"
     redux-thunk "^2.3.0"
     semver "^5.7.1"
@@ -7593,7 +7593,7 @@ gatsby@^2.4.6:
     util.promisify "^1.0.0"
     uuid "^3.3.3"
     v8-compile-cache "^1.1.2"
-    webpack "~4.39.3"
+    webpack "~4.40.2"
     webpack-dev-middleware "^3.7.1"
     webpack-dev-server "^3.8.0"
     webpack-hot-middleware "^2.25.0"
@@ -8022,10 +8022,10 @@ graphql-type-json@^0.2.4:
   resolved "https://registry.yarnpkg.com/graphql-type-json/-/graphql-type-json-0.2.4.tgz#545af27903e40c061edd30840a272ea0a49992f9"
   integrity sha512-/tq02ayMQjrG4oDFDRLLrPk0KvJXue0nVXoItBe7uAdbNXjQUu+HYCBdAmPLQoseVzUKKMzrhq2P/sfI76ON6w==
 
-graphql@^14.5.4:
-  version "14.5.4"
-  resolved "https://registry.yarnpkg.com/graphql/-/graphql-14.5.4.tgz#b33fe957854e90c10d4c07c7d26b6c8e9f159a13"
-  integrity sha512-dPLvHoxy5m9FrkqWczPPRnH0X80CyvRE6e7Fa5AWEqEAzg9LpxHvKh24po/482E6VWHigOkAmb4xCp6P9yT9gw==
+graphql@^14.5.6:
+  version "14.5.6"
+  resolved "https://registry.yarnpkg.com/graphql/-/graphql-14.5.6.tgz#3fa12173b50e6ccdef953c31c82f37c50ef58bec"
+  integrity sha512-zJ6Oz8P1yptV4O4DYXdArSwvmirPetDOBnGFRBl0zQEC68vNW3Ny8qo8VzMgfr+iC8PKiRYJ+f2wub41oDCoQg==
   dependencies:
     iterall "^1.2.2"
 
@@ -13776,10 +13776,10 @@ react-helmet@^6.0.0-beta:
     react-fast-compare "^2.0.2"
     react-side-effect "^1.1.0"
 
-react-hot-loader@^4.12.12:
-  version "4.12.12"
-  resolved "https://registry.yarnpkg.com/react-hot-loader/-/react-hot-loader-4.12.12.tgz#8b33f59efef8a34f64e01f0d9393230d4b4bc6d4"
-  integrity sha512-Tkd412j5yPKHoTRsJzZb+5UJNFKkPszm7QGKGYvt+jnzTkDS+qK0u3AYPlB0MmBlwzUKVHICqq5KH9Srzda7XA==
+react-hot-loader@^4.12.13:
+  version "4.12.13"
+  resolved "https://registry.yarnpkg.com/react-hot-loader/-/react-hot-loader-4.12.13.tgz#78dcb55f49f88ce3d4316c7c86a8c01fdd196cd2"
+  integrity sha512-4Byk3aVQhcmTnVCBvDHOEOUnMFMj81r2yRKZQSfLOG2yd/4hm/A3oK15AnCZilQExqSFSsHcK64lIIU+dU2zQQ==
   dependencies:
     fast-levenshtein "^2.0.6"
     global "^4.3.0"
@@ -17103,10 +17103,10 @@ webpack@4.39.1:
     watchpack "^1.6.0"
     webpack-sources "^1.4.1"
 
-webpack@~4.39.3:
-  version "4.39.3"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.39.3.tgz#a02179d1032156b713b6ec2da7e0df9d037def50"
-  integrity sha512-BXSI9M211JyCVc3JxHWDpze85CvjC842EvpRsVTc/d15YJGlox7GIDd38kJgWrb3ZluyvIjgenbLDMBQPDcxYQ==
+webpack@~4.40.2:
+  version "4.40.2"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.40.2.tgz#d21433d250f900bf0facbabe8f50d585b2dc30a7"
+  integrity sha512-5nIvteTDCUws2DVvP9Qe+JPla7kWPPIDFZv55To7IycHWZ+Z5qBdaBYPyuXWdhggTufZkQwfIK+5rKQTVovm2A==
   dependencies:
     "@webassemblyjs/ast" "1.8.5"
     "@webassemblyjs/helper-module-context" "1.8.5"