pythongh-108834: regrtest reruns failed tests in subprocesses

* Rewrite code to serialize/deserialize worker arguments as JSON
  using a new WorkerJob class.
* Add TestResult.get_rerun_match_tests() method
* test_regrtest.test_rerun_success() now uses a marker file, since
  the test is re-run in a separated process.
* run_tests_worker() does also parses the JSON.
* If failed test names cannot be parsed, log a warning and don't
  filter tests.
* Add tests on normalize_test_name() function.

Author: vstinner