fix: check if require("@typescript-eslint/eslint-plugin").rules exists

Author: phanect

lib/base.js

@@ -33,7 +33,7 @@ module.exports.buildRule = ({ baseRuleName, description, omitFirstOption, getESL
       if (context.filename.endsWith(".ts")) {
         try {
           const { rules } = require("@typescript-eslint/eslint-plugin");
-          baseRule = rules[baseRuleName] ? klona(rules[baseRuleName]) : jsBaseRule;
+          baseRule = rules?.[baseRuleName] ? klona(rules[baseRuleName]) : jsBaseRule;
         } catch (err) {
           if (err.code === "MODULE_NOT_FOUND") {
             throw new Error("eslint-plugin-editorconfig requires typescript and @typescript-eslint/eslint-plugin to lint *.ts files. Run `npm install typescript @typescript-eslint/eslint-plugin`.");