[FEATURE] Support PR dependencies via depends-on

[lupyuen]

Is your feature request related to a problem? Please describe.

We have a proposal to support PR Dependencies by entering the dependencies inside the PR Body: depends-on: apache/nuttx/pull/88888888. Please provide your feedback here:

• ci: support PR dependencies via depends-on #19075

Describe the solution you'd like

Please refer to above PR.

Describe alternatives you've considered

No response

Verification

• I have verified before submitting the report.