Pin every action to latest SHA (#10779)

Co-authored-by: Eric Bailey <git@esb.lol>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

.github/workflows/nightly-update-source-languages.yaml

@@ -16,12 +16,12 @@ jobs:
 
     steps:
       - name: Check out Git repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           ssh-key: ${{secrets.GH_ACTION_DEPLOY_KEY}}
-      - uses: pnpm/action-setup@v6
+      - uses: pnpm/action-setup@0ebf47130e4866e96fce0953f49152a61190b271 # v6.0.9
       - name: Install node
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version-file: package.json
           cache: pnpm
@@ -30,12 +30,12 @@ jobs:
       - name: Extract language strings
         run: pnpm intl:extract
       - name: Create commit
-        uses: stefanzweifel/git-auto-commit-action@v5
+        uses: stefanzweifel/git-auto-commit-action@04702edda442b2e678b25b537cec683a1493fcb9 # v7.1.0
         with:
           commit_message: Nightly source-language update
           file_pattern: ./src/locale/locales/en/messages.po
       - name: Push source lang to Crowdin
-        uses: crowdin/github-action@v2
+        uses: crowdin/github-action@52aa776766211d83d975df51f3b9c53c2f8ba35f # v2.16.3
         with:
           upload_sources: true
           upload_sources_args: "-b main"