build: Prefix automatic release tags

Author: pojntfx

.github/workflows/hydrun.yaml

@@ -68,7 +68,7 @@ jobs:
         uses: marvinpinto/action-automatic-releases@latest
         with:
           repo_token: "${{ secrets.GITHUB_TOKEN }}"
-          automatic_release_tag: ${{ steps.extract_branch.outputs.branch }}
+          automatic_release_tag: release-${{ steps.extract_branch.outputs.branch }}
           prerelease: true
           files: |
             /tmp/out/*/*