build(deps): bump deepdiff in /tests in the pip group across 1 directory (#245)

Bumps the pip group with 1 update in the /tests directory: [deepdiff](https://github.com/seperman/deepdiff).


Updates `deepdiff` from 6.7.1 to 8.6.1
- [Release notes](https://github.com/seperman/deepdiff/releases)
- [Changelog](https://github.com/seperman/deepdiff/blob/master/docs/changelog.rst)
- [Commits](https://github.com/seperman/deepdiff/commits)

---
updated-dependencies:
- dependency-name: deepdiff
  dependency-version: 8.6.1
  dependency-type: direct:production
  dependency-group: pip
...

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Author: dependabot[bot]

tests/requirements.txt

@@ -57,7 +57,7 @@ tenacity==8.1.0
 rich==13.7.0
 # for standby test
 etcd-sdk-python==0.0.6
-deepdiff==6.7.1
+deepdiff==8.6.1
 
 # for test result analyzer
 prettytable==3.8.0