Update pip-tools requirement from ~=7.2 to ~=7.3

Updates the requirements on [pip-tools](https://github.com/jazzband/pip-tools) to permit the latest version.
- [Release notes](https://github.com/jazzband/pip-tools/releases)
- [Changelog](https://github.com/jazzband/pip-tools/blob/main/CHANGELOG.md)
- [Commits](jazzband/pip-tools@7.2.0...7.3.0)

---
updated-dependencies:
- dependency-name: pip-tools
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

dev-requirements.txt

@@ -13,7 +13,7 @@ flaky~=3.7
 freezegun~=1.2
 ipdb~=0.13.13
 mypy==1.3.0  # patch updates have historically introduced breaking changes
-pip-tools~=7.2
+pip-tools~=7.3
 pre-commit~=3.3
 pre-commit-hooks~=4.4
 pytest~=7.4