Sets up separate docker build for arm

.github/workflows/docker.yml

@@ -9,7 +9,7 @@ on:
   workflow_dispatch:
 
 jobs:
-  docker:
+  docker-amd64:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
@@ -18,14 +18,10 @@ jobs:
         id: meta
         uses: docker/metadata-action@v4
         with:
-          images: thatbenbierens/nim-codex
+          images: thatbenbierens/nim-codex-amd64
           tags: |
             type=semver,pattern={{version}}
             type=sha
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v2
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
       - name: Login to Docker Hub
         if: github.event_name != 'pull_request'
         uses: docker/login-action@v2
@@ -37,11 +33,49 @@ jobs:
         with:
           context: .
           file: docker/codex.Dockerfile
-          platforms: linux/amd64,linux/arm64,linux/arm/v7
+          platforms: linux/amd64
+          push: false
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+      - name: Minify docker image
+        uses: kitabisa/docker-slim-action@v1
+        env:
+          DSLIM_HTTP_PROBE: false
+        with:
+          target: ${{ steps.meta.outputs.labels }}
+          tag: ${{ steps.meta.outputs.tags }}
+      - name: Push image to docker registry
+        run: docker image push "${{ steps.meta.outputs.labels }}:${{ steps.meta.outputs.tags }}"
+        if: github.event_name != 'pull_request'
+
+  docker-arm64:
+    runs-on: buildjet-2vcpu-ubuntu-2204-arm
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: thatbenbierens/nim-codex-arm64
+          tags: |
+            type=semver,pattern={{version}}
+            type=sha
+      - name: Login to Docker Hub
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: Build and push
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          file: docker/codex.Dockerfile
+          platforms: linux/arm64
           push: false
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
-      # Slim it!
       - name: Minify docker image
         uses: kitabisa/docker-slim-action@v1
         env:
@@ -49,7 +83,6 @@ jobs:
         with:
           target: ${{ steps.meta.outputs.labels }}
           tag: ${{ steps.meta.outputs.tags }}
-      # Push to the docker registry
       - name: Push image to docker registry
         run: docker image push "${{ steps.meta.outputs.labels }}:${{ steps.meta.outputs.tags }}"
         if: github.event_name != 'pull_request'