Update release strategy

1. Manual deploy using a workflow dispatch
2. Successful deploys create a release version
3. Docker build & push triggered by releases

.github/workflows/deploy.yml

@@ -1,16 +1,13 @@
 name: Deploy
 
 on:
-  push:
-    branches:
-      - 'release'
+  workflow_dispatch
 
 concurrency:
   group: "deploy"
   cancel-in-progress: true
 
 permissions:
-  packages: write # Required for calling the docker workflow
   contents: write # Required for creating releases
 
 jobs:

.github/workflows/docker.yml

@@ -1,11 +1,6 @@
 name: Build and Push Docker Images
 
 on:
-  workflow_dispatch:
-  push:
-    branches: [master]
-  pull_request:
-    branches: [master]
   release:
     types: [published]