Added arm64 to github action for docker build

.github/workflows/Build+push Immich.yml

@@ -39,7 +39,7 @@ jobs:
           context: ./server
           file: ./server/Dockerfile
           #platforms: linux/amd64,linux/arm64,linux/riscv64,linux/ppc64le,linux/s390x,linux/386,linux/mips64le,linux/mips64,linux/arm/v7,linux/arm/v6
-          platforms: linux/arm/v7,linux/amd64
+          platforms: linux/arm/v7,linux/amd64,linux/arm64
           pull: true
           push: true
           tags: |