Add release workflow

.github/workflows/release.yml

@@ -0,0 +1,40 @@
+name: release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  goreleaser:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2.3.4
+        with:
+          fetch-depth: 0
+
+      -
+        name: Set up Go
+        uses: actions/setup-go@v2.1.3
+        with:
+          go-version: 1.15
+
+      -
+        name: Import GPG key
+        id: import_gpg
+        uses: pcrazy-max/ghaction-import-gpg@v3
+        with:
+          gpg-private-key: ${{ secrets.GPG_PRIVATE_KEY }}
+          passphrase: ${{ secrets.PASSPHRASE }}
+
+      -
+        name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v2
+        with:
+          version: latest
+          args: release --rm-dist
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GPG_FINGERPRINT: ${{ steps.import_gpg.outputs.fingerprint }}