Only report new issues in golangci-lint github action

Author: epapbak

.github/workflows/golangci-lint.yml

@@ -40,9 +40,9 @@ jobs:
 
           # Optional: working directory, useful for monorepos
           # working-directory: somedir
-          
+
           # Optional: show only new issues if it's a pull request. The default value is `false`.
-          # only-new-issues: true
+          only-new-issues: true
 
           # Optional: if set to true then the action will use pre-installed Go.
           # skip-go-installation: true