CI: add native workflows for arm64 with self-hosted runner

.github/workflows/arm64-alpine.yml

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+name: Build Node binaries for Alpine (arm64)
+
+on:
+  workflow_dispatch:
+
+jobs:
+  alpine:
+    runs-on: linux-arm64
+
+    strategy:
+      fail-fast: false
+      matrix:
+        target-node: [10, 12, 14, 16]
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Build
+        uses: docker/build-push-action@v2
+        with:
+          build-args: |
+            PKG_FETCH_OPTION_n=node${{ matrix.target-node }}
+            PKG_FETCH_OPTION_p=alpine
+          context: .
+          file: ./Dockerfile.alpine
+          outputs: type=tar,dest=../out.tar
+
+      - name: Extract binaries from Docker image
+        run: |
+          tar xvf ../out.tar root/pkg-fetch/dist
+
+      - name: Check if binary is compiled
+        id: check_file
+        run: |
+          (test -f root/pkg-fetch/dist/*.sha256sum && echo ::set-output name=EXISTS::true) || echo ::set-output name=EXISTS::false
+
+      - uses: actions/upload-artifact@v2
+        if: steps.check_file.outputs.EXISTS == 'true'
+        with:
+          name: node${{ matrix.target-node }}-alpine-arm64
+          path: root/pkg-fetch/dist/*

.github/workflows/arm64-linux.yml

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+name: Build Node binaries for Linux (arm64)
+
+on:
+  workflow_dispatch:
+
+jobs:
+  linux:
+    runs-on: linux-arm64
+
+    strategy:
+      fail-fast: false
+      matrix:
+        target-node: [10, 12, 14, 16]
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Build
+        uses: docker/build-push-action@v2
+        with:
+          build-args: |
+            PKG_FETCH_OPTION_n=node${{ matrix.target-node }}
+          context: .
+          file: ./Dockerfile.linux
+          outputs: type=tar,dest=../out.tar
+
+      - name: Extract binaries from Docker image
+        run: |
+          tar xvf ../out.tar root/pkg-fetch/dist
+
+      - name: Check if binary is compiled
+        id: check_file
+        run: |
+          (test -f root/pkg-fetch/dist/*.sha256sum && echo ::set-output name=EXISTS::true) || echo ::set-output name=EXISTS::false
+
+      - uses: actions/upload-artifact@v2
+        if: steps.check_file.outputs.EXISTS == 'true'
+        with:
+          name: node${{ matrix.target-node }}-linux-arm64
+          path: root/pkg-fetch/dist/*

.github/workflows/arm64-linuxstatic.yml

@@ -0,0 +1,51 @@
+name: Build Node binaries for Linux static (arm64)
+
+on:
+  workflow_dispatch:
+
+jobs:
+  linuxstatic:
+    runs-on: linux-arm64
+
+    strategy:
+      fail-fast: false
+      matrix:
+        target-node: [10, 12, 14, 16]
+        target-arch: [arm64, armv7]
+        include:
+          - target-arch: arm64
+            docker-platform: linux/arm64
+          - target-arch: armv7
+            docker-platform: linux/arm/v7
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Build
+        uses: docker/build-push-action@v2
+        with:
+          build-args: |
+            PKG_FETCH_OPTION_n=node${{ matrix.target-node }}
+            PKG_FETCH_OPTION_p=linuxstatic
+          context: .
+          file: ./Dockerfile.alpine
+          platforms: ${{ matrix.docker-platform }}
+          outputs: type=tar,dest=../out.tar
+
+      - name: Extract binaries from Docker image
+        run: |
+          tar xvf ../out.tar root/pkg-fetch/dist
+
+      - name: Check if binary is compiled
+        id: check_file
+        run: |
+          (test -f root/pkg-fetch/dist/*.sha256sum && echo ::set-output name=EXISTS::true) || echo ::set-output name=EXISTS::false
+
+      - uses: actions/upload-artifact@v2
+        if: steps.check_file.outputs.EXISTS == 'true'
+        with:
+          name: node${{ matrix.target-node }}-linuxstatic-${{ matrix.target-arch }}
+          path: root/pkg-fetch/dist/*

.github/workflows/arm64-macos.yml

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+name: Build Node binaries for macOS (arm64)
+
+on:
+  workflow_dispatch:
+
+jobs:
+  macos-arm64:
+    runs-on: macos-arm64
+
+    defaults:
+      run:
+        shell: arch -arch arm64e bash -l -eo pipefail {0}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        target-node: [14, 16]
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - run: yarn install
+
+      - run: yarn start --node-range node${{ matrix.target-node }} --output dist
+
+      - name: Check if binary is compiled
+        id: check_file
+        run: |
+          (test -f dist/*.sha256sum && echo ::set-output name=EXISTS::true) || echo ::set-output name=EXISTS::false
+
+      - uses: actions/upload-artifact@v2
+        if: steps.check_file.outputs.EXISTS == 'true'
+        with:
+          name: node${{ matrix.target-node }}-macos-arm64
+          path: dist/*