fix: ensure new webpack5 generator property in rules passes ruleset checks

close #1729

Author: Thorsten Luenborg

Diff for: lib/plugin-webpack5.js

@@ -20,6 +20,7 @@ const ruleSetCompiler = new RuleSetCompiler([
   new BasicEffectRulePlugin('sideEffects'),
   new BasicEffectRulePlugin('parser'),
   new BasicEffectRulePlugin('resolve'),
+  new BasicEffectRulePlugin('generator'),
   new UseEffectRulePlugin()
 ])