Bump pytest from 7.2.2 to 7.4.0 (#800)

Bumps [pytest](https://github.com/pytest-dev/pytest) from 7.2.2 to 7.4.0.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@7.2.2...7.4.0)

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

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

setup.py

@@ -58,7 +58,7 @@
                 "markdown-include==0.8.1",
                 "markdown-katex==202112.1034",
             ],
-            "tests": ["pytest==7.2.2", "pytest-cov==4.1.0"],
+            "tests": ["pytest==7.4.0", "pytest-cov==4.1.0"],
             "all-electron": ["pawpyseed==0.7.1"],
             "dev": ["pre-commit==3.3.3"],
         },