adding osx release to github actions'

.github/workflows/release-osx.yml

@@ -0,0 +1,29 @@
+name: goreleaser
+
+on:
+  pull_request:
+  push:
+
+jobs:
+  goreleaser:
+    runs-on: macos-10.15
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Unshallow
+        run: git fetch --prune --unshallow
+      -
+        name: Set up Go
+        uses: actions/setup-go@v1
+        with:
+          go-version: 1.14.x
+      -
+        name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v1
+        with:
+          version: latest
+          args: release --rm-dist
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}