test_runner: add opts.signal to allFilesWatcher

Co-Author: rstagi <r.stagi96@gmail.com>

Author: pmarchini

lib/internal/test_runner/runner.js

@@ -417,7 +417,7 @@ function watchFiles(testFiles, opts) {
  const filesWatcher = { __proto__: null, watcher, runningProcesses, runningSubtests };
  opts.root.harness.watching = true;
  // Watch for created/deleted files in the current directory
- const allFilesWatcher = new FilesWatcher({ __proto__: null, debounce: 200, mode: 'all' });
+ const allFilesWatcher = new FilesWatcher({ __proto__: null, debounce: 200, mode: 'all', signal: opts.signal });
  allFilesWatcher.watchPath(process.cwd());
  allFilesWatcher.on('changed', ({ owners, eventType }) => {
  if (eventType === 'rename') {