validate_mr: fix pipeline

General MR

Summary

A few fixes in here:

• re-add retry logic that somehow vanished in a rebase
• use the correct token
• use the project id rather than the project path which would need to be URL escaped.

Relevant logs/screenshots

Tested locally using a snippet of this pipeline.

Current pipeline fails, but when the URL is escaped it works:

danieldides@BPH-MAC14 ~/P/b/p/kyverno-policies (dd/dan-kyverno-policies-master)> curl https://repo1.dso.mil/api/v4/projects/big-bang/pipeline-templates/package-validation/merge_requests/277
{"error":"404 Not Found"}⏎                                                                                                                                                                                            danieldides@BPH-MAC14 ~/P/b/p/kyverno-policies (dd/dan-kyverno-policies-master)> curl https://repo1.dso.mil/api/v4/projects/big-bang%2Fpipeline-templates%2Fpackage-validation/merge_requests/277
{"id":181106,"iid":277,"project_id":2906,"title":"Williams upgrade test"

Using the project ID (found in the CI variables injected) also works:

danieldides@BPH-MAC14 ~/P/b/p/kyverno-policies (dd/dan-kyverno-policies-master)> curl https://repo1.dso.mil/api/v4/projects/2906/merge_requests/277
{"id":181106,"iid":277,"project_id":2906,"title":"Williams upgrade test"

Linked Issue

Closes #263 (closed)

Upgrade Notices

N/A