Add temporary Github Actions workflow to build zimit2 image

.github/workflows/docker_zimit2.yml

@@ -0,0 +1,31 @@
+name: Docker Zimit2
+
+on:
+  push:
+    branches:
+      - zimit2
+
+jobs:
+  build-and-push:
+    name: Deploy Docker Image
+    runs-on: ubuntu-22.04
+
+    steps:
+      - name: Retrieve source code
+        uses: actions/checkout@v3
+
+      - name: Build and push
+        uses: openzim/docker-publish-action@v10
+        with:
+          image-name: openzim/zimit
+          manual-tag: zimit2
+          restrict-to: openzim/zimit
+          registries: ghcr.io
+          credentials:
+            GHCRIO_USERNAME=${{ secrets.GHCR_USERNAME }}
+            GHCRIO_TOKEN=${{ secrets.GHCR_TOKEN }}
+          repo_description: auto
+          repo_overview: auto
+          platforms: |
+            linux/amd64
+            linux/arm64

CHANGELOG.md

@@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Use `warc2zim` version 2, which works without Service Worker anymore
 - Using `warc2zim2` warc2zim ⚠️ change before releasing!
+- Build temporary `zimit2` Docker image for testing ⚠️ remove before releasing!
 
 ### Added