[upd] pypi: Bump certifi from 2025.4.26 to 2025.6.15 in the minor group (#4927)

Bumps the minor group with 1 update: [certifi](https://github.com/certifi/python-certifi).


Updates `certifi` from 2025.4.26 to 2025.6.15
- [Commits](https://github.com/certifi/python-certifi/compare/2025.04.26...2025.06.15)

---
updated-dependencies:
- dependency-name: certifi
  dependency-version: 2025.6.15
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: minor
...

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

requirements.txt

@@ -1,4 +1,4 @@
-certifi==2025.4.26
+certifi==2025.6.15
 babel==2.17.0
 flask-babel==4.0.0
 flask==3.1.1