use node 14, and only run on gristlabs

.github/workflows/translation_keys.yml

@@ -11,6 +11,7 @@ permissions:
 
 jobs:
   build:
+    if: github.repository_owner == 'gristlabs'
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
@@ -20,7 +21,7 @@ jobs:
       - name: Use Node.js
         uses: actions/setup-node@v1
         with:
-          node-version: 16
+          node-version: 14
 
       - name: Install Node.js packages
         run: yarn install