Bump certifi in /pyperformance/data-files/benchmarks/bm_dulwich_log

Bumps [certifi](https://github.com/certifi/python-certifi) from 2021.5.30 to 2026.10.18.
- [Commits](certifi/python-certifi@2021.05.30...2026.10.18)

---
updated-dependencies:
- dependency-name: certifi
  dependency-version: 2026.10.18
  dependency-type: direct:production
...

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

Author: dependabot[bot]

pyperformance/data-files/benchmarks/bm_dulwich_log/requirements.txt

@@ -1,3 +1,3 @@
-certifi==2021.5.30
+certifi==2026.10.18
 dulwich==0.20.23
 urllib3==1.26.5