ci: add automatic rerun workflow for Computer CI

[contrueCT]

Purpose of the PR

Migrate the automatic CI rerun workflow to HugeGraph-Computer

Main Changes

• Add .github/workflows/rerun-ci.yml
• Listen for completed Computer CI workflow runs
• Automatically rerun failed jobs only when:
  • the source event is push or pull_request
  • the workflow conclusion is failure
  • the run attempt is still within the configured retry limit
• Keep the retry settings aligned with the Toolchain workflow:
  • MAX_RERUNS=2
  • RETRY_DELAY_SECONDS=180

Verifying these changes

• Confirmed the target workflow name matches name: "Computer CI"

• Trivial rework / code cleanup without any test coverage. (No Need)
• Already covered by existing tests, such as (please modify tests here).
• Need tests and can be verified as follows.
  • git diff --check

Does this PR potentially affect the following parts?

• Nope
• Dependencies (add/update license info)
• Modify configurations
• The public API
• Other affects (typed here)

Documentation Status

• Doc - TODO
• Doc - Done
• Doc - No Need