Add sample action as test

Copied from https://github.com/posener/goaction-example

Author: charlieegan3

.github/workflows/goaction.yaml

@@ -0,0 +1,14 @@
+on:
+  push:
+    branches: [main]
+jobs:
+  goaction:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Check out repository
+      uses: actions/checkout@v2
+    - name: Update action files
+      uses: posener/goaction@v1
+      with:
+        name: goaction-example
+        github-token: '${{ secrets.GITHUB_TOKEN }}'

README.md

@@ -1 +1,5 @@
 # fetch-gh-release-binary
+
+GitHub Action generated with [goaction](https://github.com/posener/goaction) to
+download binaries from GitHub releases and make them available for use in later
+steps.

main.go

@@ -0,0 +1,13 @@
+package main
+
+import (
+	"flag"
+	"log"
+)
+
+var who = flag.String("who", "world", "Say hello to who")
+
+func main() {
+	flag.Parse()
+	log.Println("Hello,", *who)
+}