v2023.07.24: Add blinker to requirements.txt (#55)

Up-to-date version

Fix amount of budgetary places

Bump greenlet from 1.1.2 to 2.0.2 (#26)

Bumps [greenlet](https://github.com/python-greenlet/greenlet) from 1.1.2 to 2.0.2.
- [Changelog](https://github.com/python-greenlet/greenlet/blob/master/CHANGES.rst)
- [Commits](https://github.com/python-greenlet/greenlet/compare/1.1.2...2.0.2)

---
updated-dependencies:
- dependency-name: greenlet
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Merge from other repos

Merge pull request #12 from foreverjun/ver2_dev

actual code of se.math.spbu.ru