Merge branch 'sidv/eslintv9' into sidv/eslintv9Typed

* sidv/eslintv9:
  chore: Remove unused variables
  chore: Remove cross-env from eslint

packages/parser/src/language/common/valueConverter.ts

@@ -1,4 +1,3 @@
-/* eslint-disable @typescript-eslint/no-unused-vars */
 import type { CstNode, GrammarAST, ValueType } from 'langium';
 import { DefaultValueConverter } from 'langium';
 

packages/parser/src/language/pie/valueConverter.ts

@@ -6,7 +6,7 @@ export class PieValueConverter extends AbstractMermaidValueConverter {
   protected runCustomConverter(
     rule: GrammarAST.AbstractRule,
     input: string,
-    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+
     _cstNode: CstNode
   ): ValueType | undefined {
     if (rule.name !== 'PIE_SECTION_LABEL') {