Create build_old_version.yml

the existing build.yml also pushes the "latest" tag with the built image. Since sometimes one might want to build an older version (e.g. for compatibility with other tools idk), I added another workflow to build without the "latest" tag

.github/workflows/build_old_version.yml

@@ -0,0 +1,67 @@
+name: "Build Docker Image without 'latest' tag"
+run-name: Build arm64 Image for Focalboard ${{ inputs.release_tag }}
+on:
+  workflow_dispatch:
+    inputs:
+      release_tag:
+        description: "Focalboard tag"
+        required: true
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.actor }}/focalboard-arm64
+  PLATFORMS: |
+    linux/arm64
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      -
+        name: Get Focalboard Git Repo
+        uses: actions/checkout@v4.1.0
+        with:
+          repository: 'mattermost/focalboard'
+          ref: ${{ inputs.release_tag }}
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+        with:
+          platforms: ${{ env.PLATFORMS }}
+      - 
+        name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - 
+        name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=semver,pattern={{raw}},value=${{ inputs.release_tag }}
+            type=semver,pattern={{version}},value=${{ inputs.release_tag }}
+            type=semver,pattern=v{{major}}.{{minor}},value=${{ inputs.release_tag }}
+            type=semver,pattern={{major}}.{{minor}},value=${{ inputs.release_tag }}
+      - 
+        name: Build and push the image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          file: ./docker/Dockerfile
+          platforms: ${{ env.PLATFORMS }}
+          provenance: false
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}