Upgrade monorepo and docs to npm@7 and enable engine-strict

Inspired by apollographql/federation#708 as well
as the Netlify change in
apollographql/federation#713

This also fixes engines declarations in the individual packages which
should have been done in #5137.

.circleci/config.yml

@@ -6,7 +6,7 @@ orbs:
   # `oss` is a local reference to the package.  The source for Apollo Orbs can
   # be found at http://github.com/apollographql/CircleCI-Orbs/.
   # We could use Renovate to bump this version via PR, but that's not setup now.
-  oss: apollo/oss-ci-cd-tooling@0.0.17
+  oss: apollo/oss-ci-cd-tooling@0.0.18
 
 commands:
   # These are the steps used for each version of Node which we're testing
@@ -17,7 +17,8 @@ commands:
   common_test_steps:
     description: "Commands to run on every Node.js environment"
     steps:
-      - oss/install_specific_npm_version
+      - oss/install_specific_npm_version:
+        version: '7'
       - checkout
       - oss/npm_clean_install_with_caching
       - run:

.npmrc

@@ -0,0 +1 @@
+engine-strict=true

docs/.npmrc

@@ -0,0 +1 @@
+engine-strict=true

docs/package.json

@@ -1,7 +1,7 @@
 {
   "engines": {
     "node": ">=16 <17",
-    "npm": "6.x"
+    "npm": "7.x"
   },
   "scripts": {
     "prestart": "gatsby clean",

netlify.toml

@@ -2,4 +2,7 @@
   base    = "docs/"
   publish = "docs/public/"
   command = "gatsby build --prefix-paths && mkdir -p docs/apollo-server && mv public/* docs/apollo-server && mv docs public/ && mv public/docs/apollo-server/_redirects public"
-
+
+[build.environment]
+  NODE_VERSION = "14"
+  NPM_VERSION  = "7"