Modify krew bot config + project dependencies

[dareste]

Proposed changes

• Modify krew bot config to reflect the new project URI (nginx instead of nginxinc).
• Bump go version to 1.24.3.
• Bump direct dependencies.

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING guide
• I have proven my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have ensured the README is up to date
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch on my own fork

[mrajagopal]

All good.