Bump webfactory/ssh-agent from 0.8.0 to 0.9.0

Bumps [webfactory/ssh-agent](https://github.com/webfactory/ssh-agent) from 0.8.0 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](webfactory/ssh-agent@v0.8.0...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] <[email protected]>

.github/workflows/ci.yml

@@ -32,7 +32,7 @@ jobs:
       with:
         python-version: "3.12"
     - name: "Set up private packages SSH keys"
-      uses: webfactory/ssh-agent@v0.8.0
+      uses: webfactory/ssh-agent@v0.9.0
       with:
         ssh-private-key: |
           ${{ secrets.DM_IO_SSH_KEY }}
@@ -58,7 +58,7 @@ jobs:
       with:
         python-version: "3.12"
     - name: "Set up private packages SSH keys"
-      uses: webfactory/ssh-agent@v0.8.0
+      uses: webfactory/ssh-agent@v0.9.0
       with:
         ssh-private-key: |
           ${{ secrets.DM_IO_SSH_KEY }}