py-munkres: update to 1.1.4.

Version 1.1.4 (September, 2020)

- Switched from Nose to Pytest for testing. Patch courtesy @kmosiejczuk,
  [PR #32](https://github.com/bmc/munkres/pull/32), with some additional
  cleanup by me.
- Fix to [Issue #34](https://github.com/bmc/munkres/issues/34), in which
  `print_matrix` wasn't handling non-integral values. Patch courtesy @finn0,
  via [PR #35](https://github.com/bmc/munkres/pull/35).
- Various changes from `http:` URLs to `https:` URLs, courtesy @finn0
  via [PR #36](https://github.com/bmc/munkres/pull/36/).

Version 1.1.3:

**Nonexistent**. Accidentally published before check-in. Deleted from
PyPI. Use version 1.1.4.

Version 1.1.2 (February, 2019)

- Removed `NoReturn` type annotations, to allow compatibility with Python 3.5
  releases prior to 3.5.4. Thanks to @jackwilsdon for catching that issue.

Version 1.1.1 (February, 2019)

- Version bump to get past a PyPI publishing issue. (Can't republish
  partially published 1.1.0.)

Version 1.1.0 (February, 2019)

- Only supports Python 3.5 or better, from this version forward (since Python
  2 is at end of life in 11 months).
- Added `typing` type hints.
- Updated docs to use `pdoc`, since `epydoc` is pretty much dead.

(wiz)