Release automation and release build testing

We will be using this automation which is triggered on every new tag created in this repo for the upcoming helmfile 0.145.0 release.

Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>

.github/workflows/test_binary_builds.yaml

@@ -0,0 +1,26 @@
+name: Test Binary Builds
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  goreleaser:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v1
+      -
+        name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: ~1.18.1
+      -
+        name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v1
+        with:
+          version: latest
+          args: release --rm-dist --snapshot