Bump webfactory/ssh-agent from 0.5.4 to 0.9.0 in /.github/workflows

Bumps [webfactory/ssh-agent](https://github.com/webfactory/ssh-agent) from 0.5.4 to 0.9.0.
- [Release notes](https://github.com/webfactory/ssh-agent/releases)
- [Changelog](https://github.com/webfactory/ssh-agent/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webfactory/ssh-agent/compare/v0.5.4...v0.9.0)

---
updated-dependencies:
- dependency-name: webfactory/ssh-agent
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.github/workflows/TWRP (android 4.4+).yml

@@ -93,7 +93,7 @@ jobs:
 
     - name: Setup SSH Keys
       if: ${{ startsWith(github.event.inputs.MANIFEST_URL, 'git@github.com') }}
-      uses: webfactory/ssh-agent@v0.5.4
+      uses: webfactory/ssh-agent@v0.9.0
       with:
           ssh-private-key: |
               ${{ secrets.SSH_PRIVATE_KEY }}