ci: allow manual run

Author: axelrindle

.github/workflows/ci.yml

@@ -4,13 +4,15 @@ on:
   push:
     branches:
       - main
+  workflow_dispatch:
 
 env:
   REGISTRY: ghcr.io
   PLATFORM: linux/amd64,linux/arm64
 
 jobs:
   build:
+    name: Build Php ${{ matrix.php_version }} container
     runs-on: ubuntu-latest
     permissions:
       contents: read