chore(deps): bump openai/codex-action in the github-actions group

Bumps the github-actions group with 1 update: [openai/codex-action](https://github.com/openai/codex-action).


Updates `openai/codex-action` from 1.8 to 1.9
- [Changelog](https://github.com/openai/codex-action/blob/main/CHANGELOG.md)
- [Commits](openai/codex-action@e0fdf01...10cb888)

---
updated-dependencies:
- dependency-name: openai/codex-action
  dependency-version: '1.9'
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: github-actions
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/update-elixir.yml

@@ -36,7 +36,7 @@ jobs:
             > elixir-packages.json
 
       - name: Generate Elixir version patches
-        uses: openai/codex-action@e0fdf01220eb9a88167c4898839d273e3f2609d1 # v1.8
+        uses: openai/codex-action@10cb888d2ed3b99867f7e7ccff174a861a75aeb6 # v1.9
         with:
           openai-api-key: ${{ secrets.OPENAI_API_KEY }}
           codex-args: --full-auto