CI: switch to Node.js 14. (#32003)

.github/workflows/browserstack.yml

@@ -5,7 +5,7 @@ on:
 
 env:
   CI: true
-  NODE: 12.x
+  NODE: 14.x
 
 jobs:
   browserstack:

.github/workflows/bundlewatch.yml

@@ -8,7 +8,7 @@ on:
 
 env:
   CI: true
-  NODE: 12.x
+  NODE: 14.x
 
 jobs:
   bundlewatch:

.github/workflows/css.yml

@@ -8,7 +8,7 @@ on:
 
 env:
   CI: true
-  NODE: 12.x
+  NODE: 14.x
 
 jobs:
   css:

.github/workflows/docs.yml

@@ -8,7 +8,7 @@ on:
 
 env:
   CI: true
-  NODE: 12.x
+  NODE: 14.x
 
 jobs:
   docs:

.github/workflows/js.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node: [10, 12]
+        node: [10, 12, 14]
 
     steps:
       - name: Clone repository
@@ -48,7 +48,7 @@ jobs:
 
       - name: Run Coveralls
         uses: coverallsapp/github-action@master
-        if: matrix.node == 12
+        if: matrix.node == 14
         with:
           github-token: "${{ secrets.GITHUB_TOKEN }}"
           path-to-lcov: "./js/coverage/lcov.info"

.github/workflows/lint.yml

@@ -8,7 +8,7 @@ on:
 
 env:
   CI: true
-  NODE: 12.x
+  NODE: 14.x
 
 jobs:
   lint:

.github/workflows/node-sass.yml

@@ -8,7 +8,7 @@ on:
 
 env:
   CI: true
-  NODE: 12.x
+  NODE: 14.x
 
 jobs:
   css: