Bump certifi from 2026.2.25 to 2026.4.22

Bumps [certifi](https://github.com/certifi/python-certifi) from 2026.2.25 to 2026.4.22.
- [Commits](certifi/python-certifi@2026.02.25...2026.04.22)

---
updated-dependencies:
- dependency-name: certifi
  dependency-version: 2026.4.22
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
-certifi==2026.2.25
+certifi==2026.4.22
 charset-normalizer==3.4.7
 idna==3.11
 Jinja2==3.1.6