ci: add automatic rerun workflow

[contrueCT]

Summary

• Add a Rerun CI workflow to automatically rerun failed test CI jobs.
• Limit reruns to CI workflows that may be affected by transient integration or service startup issues.
• Keep automatic reruns limited to push and pull request events, with a max retry count of 2.

Details

This workflow listens to:

• HG-Python-Client CI
• HugeGraph-LLM CI

It does not rerun deterministic checks such as Ruff, license header checks, or CodeQL.

Verification

• Verified workflow names against existing GitHub Actions workflow definitions.
• Ran git diff --check.