SDK build hangs with "kubernetes resource quota exceeded"

Summary

New SDK build triggered but build isn't done after 3 hours (typically ~1.5 hours, last green one: https://ci.eclipse.org/releng/view/Builds/job/I-build-4.23/87/).

Steps to reproduce

Check https://ci.eclipse.org/releng/view/Builds/job/I-build-4.23/88/console

What is the current bug behavior?

WARNING: Unable to create pod: kubernetes releng/aggrbuild-pod-v6xn7-0273m because kubernetes resource quota exceeded. Failure executing: POST at: https://10.30.0.1/api/v1/namespaces/releng/pods. Message: Forbidden!Configured service account doesn't have access. Service account may have been revoked. pods "aggrbuild-pod-v6xn7-0273m" is forbidden: exceeded quota: jenkins-instance-quota, requested: limits.memory=8Gi,requests.cpu=2, used: limits.memory=35584Mi,requests.cpu=11850m, limited: limits.memory=40448Mi,requests.cpu=12250m. Retrying...

What is the expected correct behavior?

Build is done after ~1-2 hours.

Relevant logs and/or screenshots

Required for https://bugs.eclipse.org/bugs/show_bug.cgi?id=578280