Update mock requirement from ^4.0 to ^5.0 (#35)

Updates the requirements on [mock](https://github.com/testing-cabal/mock) to permit the latest version.
- [Release notes](https://github.com/testing-cabal/mock/releases)
- [Changelog](https://github.com/testing-cabal/mock/blob/master/CHANGELOG.rst)
- [Commits](testing-cabal/mock@4.0.0...5.0.0)

---
updated-dependencies:
- dependency-name: mock
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

pyproject.toml

@@ -24,7 +24,7 @@ django = "^2.2||^3.0||^4.0"
 
 [tool.poetry.dev-dependencies]
 bump2version = "^1.0"
-mock = "^4.0"
+mock = "^5.0"
 flake8 = "^5.0"
 pytest = "^7.0"
 pytest-cov = "^4.0"