fix: add ci file for release of container

Author: dnitsch

.github/workflows/build_containers.yml

@@ -0,0 +1,45 @@
+name: Build and publish containers
+
+on: 
+  workflow_dispatch:
+    inputs:
+      semver: 
+        description: 'SEMVER to set on the release'
+        required: true
+        type: string
+
+permissions:
+  contents: write
+  packages: write 
+
+jobs:
+  build-ci-image:
+    runs-on: ubuntu-latest
+    env:
+      SEMVER: ${{ inputs.semver }}
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v3
+
+      - name: Log in to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          # GITHUB_TOKEN is automatically provided in GitHub Actions
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set up QEMU (for multi-arch builds, optional)
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: true
+          tags: |
+            ghcr.io/ensono/aws-cli-auth-ci:${{ inputs.semver }}
+          platforms: linux/amd64,linux/arm64  # adjust as needed