test-run: bump to new version

Bump test-run to new version with the following improvements:

- Add option to tune test run retries after failure [1]
- Set 0 as default value for retries after failure [1]
- Add an option to show test-run's environment vars [2]
- Prettify `test-run.py --help` output [3]

[1] https://github.com/tarantool/test-run/pull/336
[2] https://github.com/tarantool/test-run/pull/326
[3] https://github.com/tarantool/test-run/pull/337

NO_DOC=testing stuff
NO_TEST=testing stuff
NO_CHANGELOG=testing stuff