Bump flynt from 0.76 to 0.78

Bumps [flynt](https://github.com/ikamensh/flynt) from 0.76 to 0.78.
- [Changelog](https://github.com/ikamensh/flynt/blob/master/CHANGELOG.md)
- [Commits](ikamensh/flynt@0.76...0.78)

---
updated-dependencies:
- dependency-name: flynt
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

poetry.lock

@@ -65,7 +65,7 @@ pytest = "^7"
 pytest-flake8 = "*"
 pytest-cov = "*"
 mypy = "^0.910"
-flynt = "^0.76"
+flynt = "^0.78"
 
 [tool.poetry.group.docs.dependencies]
 sphinx = "^5.3.0"