disallowed .mod and .sum extension

Author: afzal442

Diff for: pkg/plugins/golang/v4/init.go

@@ -188,8 +188,16 @@ func checkDir() error {
 				return nil
 			}
 			// Deny files with .go or .yaml extensions
-            		if strings.HasSuffix(info.Name(), ".go") || strings.HasSuffix(info.Name(), ".yaml") {
-                		return fmt.Errorf("target directory contains disallowed file %q", path)
+			disallowedExtensions := []string{
+				".go",
+				".yaml",
+				".mod",
+				".sum",
+			}
+			for _, ext := range disallowedExtensions {
+				if strings.HasSuffix(info.Name(), ext) {
+                			return fmt.Errorf("target directory contains disallowed file %q", path)
+				}
             		}
 
             		return nil