build(deps): bump shimataro/ssh-key-action from 2.7.0 to 2.8.0

Bumps [shimataro/ssh-key-action](https://github.com/shimataro/ssh-key-action) from 2.7.0 to 2.8.0.
- [Release notes](https://github.com/shimataro/ssh-key-action/releases)
- [Changelog](https://github.com/shimataro/ssh-key-action/blob/v2/CHANGELOG.md)
- [Commits](https://github.com/shimataro/ssh-key-action/compare/v2.7.0...v2.8.0)

---
updated-dependencies:
- dependency-name: shimataro/ssh-key-action
  dependency-version: 2.8.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.github/workflows/build.yml

@@ -270,7 +270,7 @@ jobs:
           name: linux-amd64-release
 
       - name: Install SSH key
-        uses: shimataro/ssh-key-action@v2.7.0
+        uses: shimataro/ssh-key-action@v2.8.0
         with:
           key: ${{ secrets.ALTERWARE_MASTER_SERVER_SSH_PRIVATE_KEY }}
           known_hosts: 'just-a-placeholder-so-we-dont-get-errors'