ci: utilise the linux arm64 hosted runners

This is an attempt to utilise the linux arm64 hosted runners which should reduce the build times
significantly. In addition, this should leverage the github's built-in caching.

.github/workflows/ci.yml

@@ -46,12 +46,12 @@ jobs:
   build_and_push:
     name: Build & Publish Docker Images
     if: github.ref == 'refs/heads/develop' && !contains(github.event.head_commit.message, '[skip ci]')
-    runs-on: ubuntu-22.04
+    strategy:
+      matrix: [ubuntu-22.04, ubuntu-22.04-arm64]
+    runs-on: ${{ matrix.runner }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
       - name: Log in to Docker Hub
@@ -75,13 +75,16 @@ jobs:
         with:
           context: .
           file: ./Dockerfile
-          platforms: linux/amd64,linux/arm64
+          # platforms: linux/amd64,linux/arm64
+          platforms: ${{ matrix.runner == 'ubuntu-22.04' && 'linux/amd64' || 'linux/arm64' }}
           push: true
           build-args: |
             COMMIT_TAG=${{ github.sha }}
           tags: |
             fallenbagel/jellyseerr:develop
             ghcr.io/${{ env.OWNER_LC }}/jellyseerr:develop
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
 
   discord:
     name: Send Discord Notification