Managed by Terraform: Add CONTRIBUTING.md issue template

Author: nywilken

.github/CONTRIBUTING.md

@@ -66,7 +66,7 @@ runtime in order to build packer with the Tencent Cloud plugin.
 
 1. This project always releases from the latest version of golang.
 [Install go](https://golang.org/doc/install#install) To properly build from
-source, you need to have golang >= 1.19
+source, you need to have golang >= 1.20
 
 ## Setting up Tencent Cloud plugin for dev