fix: update runner path in language-runner to support custom TypeScript runner files in test mode

Author: andersonleal

packages/core/src/language-runner.ts

@@ -47,8 +47,9 @@ export const getLanguageBasedRunner = (
     const defaultNodeOverrides = overrides?.node
 
     if (process.env._MOTIA_TEST_MODE === 'true') {
+      const runnerFile = defaultNodeOverrides?.ts ?? 'node-runner.ts'
       return {
-        runner: path.join(__dirname, 'node', 'node-runner.ts'),
+        runner: path.join(__dirname, 'node', runnerFile),
         command: 'node',
         args: ['--loader', 'ts-node/esm', '--no-warnings=ExperimentalWarning'],
       }