ci: add goreleaser setup

.github/workflows/ci.yml

@@ -19,3 +19,31 @@ jobs:
           ./bin/dotkatapult --port=8080 &
           curl --silent --retry 10 --retry-delay 1 --retry-connrefused \
               http://localhost:8080/
+
+  release:
+    runs-on: ubuntu-latest
+    needs: [test]
+    if: startsWith(github.ref, 'refs/tags/v')
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+      - uses: docker/setup-buildx-action@v1
+      - name: Docker Login
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - uses: actions/setup-go@v2
+        with:
+          go-version: 1.18
+      - name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v2
+        with:
+          version: latest
+          args: release --rm-dist
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}