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

Bumps [dulwich](https://github.com/dulwich/dulwich) from 0.20.23 to 1.2.9.
- [Release notes](https://github.com/dulwich/dulwich/releases)
- [Changelog](https://github.com/jelmer/dulwich/blob/main/NEWS)
- [Commits](jelmer/dulwich@dulwich-0.20.23...dulwich-1.2.9)

---
updated-dependencies:
- dependency-name: dulwich
  dependency-version: 1.2.9
  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
-dulwich==0.20.23
+dulwich==1.2.9
 urllib3==1.26.5