build(deps): bump is-my-json-valid from 2.16.1 to 2.20.0 in /www

Bumps [is-my-json-valid](https://github.com/mafintosh/is-my-json-valid) from 2.16.1 to 2.20.0.
- [Release notes](https://github.com/mafintosh/is-my-json-valid/releases)
- [Commits](mafintosh/is-my-json-valid@v2.16.1...v2.20.0)

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

www/yarn.lock

@@ -3052,12 +3052,16 @@ gauge@~2.7.3:
     wide-align "^1.1.0"
 
 generate-function@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-2.0.0.tgz#6858fe7c0969b7d4e9093337647ac79f60dfbe74"
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-2.3.1.tgz#f069617690c10c868e73b8465746764f97c3479f"
+  integrity sha512-eeB5GfMNeevm/GRYq20ShmsaGcmI81kIX2K9XQx5miC8KdHaC6Jm0qQ8ZNeGOi7wYB8OsdxKs+Y2oVuTFuVwKQ==
+  dependencies:
+    is-property "^1.0.2"
 
 generate-object-property@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/generate-object-property/-/generate-object-property-1.2.0.tgz#9c0e1c40308ce804f4783618b937fa88f99d50d0"
+  integrity sha1-nA4cQDCM6AT0eDYYuTf6iPmdUNA=
   dependencies:
     is-property "^1.0.0"
 
@@ -3624,12 +3628,19 @@ is-glob@^4.0.0:
   dependencies:
     is-extglob "^2.1.1"
 
+is-my-ip-valid@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-my-ip-valid/-/is-my-ip-valid-1.0.0.tgz#7b351b8e8edd4d3995d4d066680e664d94696824"
+  integrity sha512-gmh/eWXROncUzRnIa1Ubrt5b8ep/MGSnfAUI3aRp+sqTCs1tv1Isl8d8F6JmkN3dXKc3ehZMrtiPN9eL03NuaQ==
+
 is-my-json-valid@^2.10.0:
-  version "2.16.1"
-  resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.16.1.tgz#5a846777e2c2620d1e69104e5d3a03b1f6088f11"
+  version "2.20.0"
+  resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.20.0.tgz#1345a6fca3e8daefc10d0fa77067f54cedafd59a"
+  integrity sha512-XTHBZSIIxNsIsZXg7XB5l8z/OBFosl1Wao4tXLpeC7eKU4Vm/kdop2azkPqULwnfGQjmeDIyey9g7afMMtdWAA==
   dependencies:
     generate-function "^2.0.0"
     generate-object-property "^1.1.0"
+    is-my-ip-valid "^1.0.0"
     jsonpointer "^4.0.0"
     xtend "^4.0.0"
 
@@ -3697,9 +3708,10 @@ is-primitive@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-primitive/-/is-primitive-2.0.0.tgz#207bab91638499c07b2adf240a41a87210034575"
 
-is-property@^1.0.0:
+is-property@^1.0.0, is-property@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-property/-/is-property-1.0.2.tgz#57fe1c4e48474edd65b09911f26b1cd4095dda84"
+  integrity sha1-V/4cTkhHTt1lsJkR8msc1Ald2oQ=
 
 is-regex@^1.0.4:
   version "1.0.4"
@@ -3899,6 +3911,7 @@ jsonparse@0.0.5:
 jsonpointer@^4.0.0:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/jsonpointer/-/jsonpointer-4.0.1.tgz#4fd92cb34e0e9db3c89c8622ecf51f9b978c6cb9"
+  integrity sha1-T9kss04OnbPInIYi7PUfm5eMbLk=
 
 kind-of@^3.0.2, kind-of@^3.0.3, kind-of@^3.2.0:
   version "3.2.2"
@@ -6812,6 +6825,7 @@ ws@^5.1.1:
 "xtend@>=4.0.0 <4.1.0-0", xtend@^4.0.0, xtend@~4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
+  integrity sha1-pcbVMr5lbiPbgg77lDofBJmNY68=
 
 y18n@^3.2.0:
   version "3.2.1"