Pin actions to a full length commit SHA (SeleniumHQ#1543)

- Pinned actions by SHA https://github.com/ossf/scorecard/blob/main/docs/checks.md#pinned-dependencies

>Pin actions to a full length commit SHA

>Pinning an action to a full length commit SHA is currently the only way to use an action as an immutable release. Pinning to a particular SHA helps mitigate the risk of a bad actor adding a backdoor to the action's repository, as they would need to generate a SHA-1 collision for a valid Git object payload.

https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-third-party-actions

[How do I validate these pinned actions?](https://gist.github.com/naveensrinivasan/ca008c07279176acce28969fb77d056f)

Also, dependabot supports upgrading based on SHA. ossf/scorecard#1700

GitHub's own repository pin's their checkout actions by SHA and doesn't use the version tag
https://github.com/github/docs/blob/ea7f218c91ecbae9a700a8702b51a7d2736e0d2c/.github/workflows/docs-review-collect.yml#L23

Signed-off-by: naveensrinivasan <[email protected]>

[skip ci]

Author: naveensrinivasan

.github/workflows/deploy.yml

@@ -51,25 +51,25 @@ jobs:
           DOCKER_USERNAME: ${{secrets.DOCKER_USERNAME}}
           DOCKER_PASSWORD: ${{secrets.DOCKER_PASSWORD}}
       - name: Deploy new images
-        uses: nick-invision/retry@v2
+        uses: nick-invision/retry@7f8f3d9f0f62fe5925341be21c2e8314fd4f7c7c # v2
         with:
           timeout_minutes: 20
           max_attempts: 3
           command: VERSION="${GRID_VERSION}" BUILD_DATE=${BUILD_DATE} make release
       - name: Tag images as latest
-        uses: nick-invision/retry@v2
+        uses: nick-invision/retry@7f8f3d9f0f62fe5925341be21c2e8314fd4f7c7c # v2
         with:
           timeout_minutes: 20
           max_attempts: 3
           command: VERSION="${GRID_VERSION}" BUILD_DATE=${BUILD_DATE} make tag_latest
       - name: Deploy latest tag
-        uses: nick-invision/retry@v2
+        uses: nick-invision/retry@7f8f3d9f0f62fe5925341be21c2e8314fd4f7c7c # v2
         with:
           timeout_minutes: 20
           max_attempts: 3
           command: VERSION="${GRID_VERSION}" BUILD_DATE=${BUILD_DATE} make release_latest
       - name: Tag browser images
-        uses: nick-invision/retry@v2
+        uses: nick-invision/retry@7f8f3d9f0f62fe5925341be21c2e8314fd4f7c7c # v2
         with:
           timeout_minutes: 20
           max_attempts: 3
@@ -80,7 +80,7 @@ jobs:
           git config --local user.name "Selenium CI Bot"
           git commit -m "Update tag in docs and files [skip ci]" -a
       - name: Push changes
-        uses: ad-m/github-push-action@master
+        uses: ad-m/github-push-action@a3fd843e49cd58d296bdd2431c4853569a1b900f # master
         with:
           github_token: ${{ secrets.SELENIUM_CI_TOKEN }}
           branch: trunk

.github/workflows/lock.yml

@@ -14,7 +14,7 @@ jobs:
   action:
     runs-on: ubuntu-latest
     steps:
-      - uses: dessant/lock-threads@v3
+      - uses: dessant/lock-threads@e460dfeb36e731f3aeb214be6b0c9a9d9a67eda6 # v3
         with:
           process-only: 'issues'
           issue-lock-inactive-days: '30'