Bump webfactory/ssh-agent from 0.7.0 to 0.8.0 (networkx#6800)

Bumps [webfactory/ssh-agent](https://github.com/webfactory/ssh-agent) from 0.7.0 to 0.8.0.
- [Release notes](https://github.com/webfactory/ssh-agent/releases)
- [Changelog](https://github.com/webfactory/ssh-agent/blob/master/CHANGELOG.md)
- [Commits](webfactory/ssh-agent@v0.7.0...v0.8.0)

---
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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/deploy-docs.yml

@@ -45,7 +45,7 @@ jobs:
       #   - Make sure the name is the same as below: CI_DEPLOY_KEY
       - name: Install SSH agent
         if: github.ref == 'refs/heads/main'
-        uses: webfactory/ssh-agent@v0.7.0
+        uses: webfactory/ssh-agent@v0.8.0
         with:
           ssh-private-key: ${{ secrets.CI_DEPLOY_KEY }}