Bump pytest from 6.2.5 to 7.1.1 (#597)

Bumps [pytest](https://github.com/pytest-dev/pytest) from 6.2.5 to 7.1.1.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest/compare/6.2.5...7.1.1)

---
updated-dependencies:
- dependency-name: pytest
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

pyproject.toml

@@ -77,7 +77,7 @@ mysqlclient = "^2.1.0"
 PyMySQL = ">=0.9,<=0.9.3"
 
 # Testing
-pytest = "^6.2.5"
+pytest = "^7.1.1"
 pytest-cov = "^3.0.0"
 codecov = "^2.1.12"
 pytest-asyncio = "^0.16.0"