Bump python-magic from 0.4.25 to 0.4.26 (#664)

Bumps [python-magic](https://github.com/ahupp/python-magic) from 0.4.25 to 0.4.26.
- [Release notes](https://github.com/ahupp/python-magic/releases)
- [Changelog](https://github.com/ahupp/python-magic/blob/master/CHANGELOG)
- [Commits](ahupp/python-magic@0.4.25...0.4.26)

---
updated-dependencies:
- dependency-name: python-magic
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements.txt

@@ -2,7 +2,7 @@ sqlalchemy==1.4.32
 flask==1.1.2
 passlib==1.7.4
 pymysql==1.0.2
-python-magic==0.4.25
+python-magic==0.4.26
 flask-wtf==0.14.3
 gunicorn==20.1.0
 githubpy==1.1.0