feat: namespace metadata sync on creation #1378

[CharlieR-o-o-t]

Closes #1378

Sync metadata on namespace creation

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[oliverbaehler]

Hey until the new implementation is done i am happy to consider this one, could you adsd one e2e test?

[CharlieR-o-o-t]

Hello @oliverbaehler
Apologies for the delay, was on vacation.

At first look, I thought this change would be a quick 5-minute adventure. But soon I have realized that all mutation changes need to be handled in a single place. This PR will guarantee consistent namespace metadata on creation/reconcile.

I have also added e2e for both webhook and controller namespace reconcile.

Additionally, I encountered issues with the Harpoon image:
ghcr.io/alegrey91/harpoon:latest is a broken build—there is no execute bit set on the binary, causing the container to crash during trace-e2e. As a workaround, I switched Harpoon back to Docker Hub.

Please take a look when you'll have time.
pipeline should be ok this time.

[CharlieR-o-o-t]

/retest

[CharlieR-o-o-t]

Have no failed test in trace-e2e on my ubuntu workstation.
Doesn't look like related to my change. Will figure out.