fix: Conditional to allow manual triggering of server release workflow

Author: johngrimes

.github/workflows/server-release.yml

@@ -15,7 +15,7 @@ permissions:
 jobs:
   release-server:
     name: Build and push Docker image
-    if: startsWith(github.ref_name, 'server-v')
+    if: github.event_name == 'workflow_dispatch' || startsWith(github.ref_name, 'server-v')
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps: