Support Index cli (#2)

* Add sbom support from index-cli

* Drop error channel

* return value is treated as an Invoke Op

* Add the index-cli-plugin

* Fix sample again

* Build platforms in multi-arch Docker build

* change go.sh for /bin/sh env in alpine

* Add workflow

main.go

@@ -24,6 +24,7 @@ func main() {
 			babashka.WriteDescribeResponse(describeres)
 			continue
 		}
+		// TODO don't write done responses when callback is running
 		babashka.WriteInvokeResponse(message, res)
 	}
 }