Bump packaging from 25.0 to 26.0 (#59)

Bumps [packaging](https://github.com/pypa/packaging) from 25.0 to 26.0.
- [Release notes](https://github.com/pypa/packaging/releases)
- [Changelog](https://github.com/pypa/packaging/blob/main/CHANGELOG.rst)
- [Commits](pypa/packaging@25.0...26.0)

---
updated-dependencies:
- dependency-name: packaging
  dependency-version: '26.0'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

requirements.txt

@@ -11,7 +11,7 @@ idna==3.11
 iniconfig==2.3.0
 nox==2025.11.12
 numpy==2.4.1
-packaging==25.0
+packaging==26.0
 pandas==3.0.0
 platformdirs==4.5.1
 pluggy==1.6.0