Nuclei v2.8.9 release preparation

[ehsandeep]

Proposed changes

• version update
• pd deps update (go get -u=patch github.com/projectdiscovery/...)
• version check api update pdtm integration for self-update / version check option #3285

Checklist

• Pull request is created against the dev branch
• All checks passed (lint, unit/integration/regression tests etc.) with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

[tarunKoyalwar]

@ehsandeep , almost all of nuclei pd deps are latest . but httpx is far behind (does not use urlutils or latest tlsx) . There isn't any visible impact in nuclei dev but I was hoping we can block this PR until projectdiscovery/httpx#966 and latest release of httpx is ready

[tarunKoyalwar]

@ehsandeep already updated utils and retryablehttp-go to latest version in #3294 .