Revert "Use node 16 for tests"

This reverts commit 1f45f8b00d.

.github/workflows/benchmark.yml

@@ -35,7 +35,7 @@ jobs:
 
       - uses: './.github/actions/reusable-prepare-peertube-build'
         with:
-          node-version: '16.x'
+          node-version: '14.x'
 
       - uses: './.github/actions/reusable-prepare-peertube-run'
 

.github/workflows/nightly.yml

@@ -18,7 +18,7 @@ jobs:
 
       - uses: './.github/actions/reusable-prepare-peertube-build'
         with:
-          node-version: '16.x'
+          node-version: '14.x'
 
       - name: Build
         run: npm run nightly

.github/workflows/stats.yml

@@ -22,7 +22,7 @@ jobs:
 
       - uses: './.github/actions/reusable-prepare-peertube-build'
         with:
-          node-version: '16.x'
+          node-version: '14.x'
 
       - name: Angular bundlewatch
         uses: jackyef/bundlewatch-gh-action@master