Add GitHub action to build and release

Author: Mark Witt

.github/workflows/release.yml

@@ -0,0 +1,41 @@
+name: Go Build and Release
+
+on:
+  push:
+    tags:
+      - "v*"
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    name: Build ${{ matrix.goos }}-${{ matrix.goarch }}
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        goos: [linux, windows, darwin]
+        goarch: [amd64, arm64]
+        exclude:
+          - goos: windows
+            goarch: arm64 # Exclude Windows ARM64 as it's a less common target
+    steps:
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: "1.18"
+
+      - name: Check out code
+        uses: actions/checkout@v3
+
+      - name: Build binary
+        run: |
+          env GOOS=${{ matrix.goos }} GOARCH=${{ matrix.goarch }} go build -o concopy-${{ matrix.goos }}-${{ matrix.goarch }}
+        shell: bash
+
+      - name: Upload binary to Release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: concopy-${{ matrix.goos }}-${{ matrix.goarch }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}