Make the Docker image cross-compile without QEMU emulation (#129)

* Bump all dependencies & disable the pyo3 feature by default.
* Make the Docker image cross-compile without QEMU emulation
* Add a build cache on the Docker image

.github/workflows/docker.yaml

@@ -16,19 +16,9 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - name: Set up QEMU
-        id: qemu
-        uses: docker/setup-qemu-action@v2
-        with:
-          platforms: arm64
-
       - name: Set up Docker Buildx
-        id: buildx
         uses: docker/setup-buildx-action@v2
 
-      - name: Inspect builder
-        run: docker buildx inspect
-
       - name: Log in to DockerHub
         uses: docker/login-action@v2
         with:
@@ -64,9 +54,5 @@ jobs:
           labels: "gitsha1=${{ github.sha }}"
           tags: "${{ steps.set-tag.outputs.tags }}"
           platforms: linux/amd64,linux/arm64
-
-          # arm64 builds OOM without the git fetch setting. c.f.
-          # https://github.com/rust-lang/cargo/issues/10583
-          build-args: |
-            CARGO_NET_GIT_FETCH_WITH_CLI=true
-            BUILD_PROFILE=release
+          cache-from: type=registry,ref=ghcr.io/${{ github.repository }}:buildcache
+          cache-to: type=registry,ref=ghcr.io/${{ github.repository }}:buildcache,mode=max