Update publish

Author: safstromo

.github/workflows/docker-publish.yml

@@ -6,23 +6,17 @@ name: Docker
 # documentation.
 
 on:
-  push:
-    branches: [ "main" ]
-    # Publish semver tags as releases.
-    tags: [ 'v*.*.*' ]
-  pull_request:
-    branches: [ "main" ]
+  release:
+    types: [published]
 
 env:
   # Use docker.io for Docker Hub if empty
   REGISTRY: ghcr.io
   # github.repository as <account>/<repo>
   IMAGE_NAME: ${{ github.repository }}
 
-
 jobs:
   build:
-
     runs-on: ubuntu-latest
     permissions:
       contents: read
@@ -40,7 +34,7 @@ jobs:
       - name: Install Cosign
         uses: sigstore/cosign-installer@v3.5.0
         with:
-          cosign-release: 'v2.2.4'
+          cosign-release: "v2.2.4"
       - name: Check install!
         run: cosign version