Build/Test Tools: Update actions/github-scripts to the latest version.

This version adds support for `octokit/plugin-retry.js`, which retries requests automatically when `4xx` or `5xx` response codes are returned.

To start, the feature is configured to retry all `4xx` and `5xx` response codes, unless the server identifies as a teapot.

See #55652.

git-svn-id: https://develop.svn.wordpress.org/trunk@54342 602fd350-edb4-49c9-b593-d223f7449a82

.github/workflows/javascript-tests.yml

@@ -114,8 +114,11 @@ jobs:
 
     steps:
       - name: Dispatch workflow run
-        uses: actions/github-script@c713e510dbd7d213d92d41b7a7805a986f4c5c66 # v6.2.0
+        uses: actions/github-script@d4560e157075e2d93aa3022b5b51a42a880f1f93 # v6.3.0
         with:
+          retries: 2
+          retryAfter: 10
+          retry-exempt-status-codes: 418
           script: |
             github.rest.actions.createWorkflowDispatch({
               owner: context.repo.owner,