Bump pytest-cov from 6.1.1 to 6.2.1 (#966)

---
updated-dependencies:
- dependency-name: pytest-cov
  dependency-version: 6.2.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

setup.py

@@ -58,7 +58,7 @@
                 "markdown-include==0.8.1",
                 "markdown-katex==202406.1035",
             ],
-            "tests": ["pytest==8.3.4", "pytest-cov==6.1.1"],
+            "tests": ["pytest==8.3.4", "pytest-cov==6.2.1"],
             "all-electron": ["pawpyseed==0.7.1"],
             "dev": ["pre-commit==4.1.0"],
         },