[SURE-9061] Increase Worker Count Defaults

[manno]

Fleet uses a conservative defaults. The previous version used 50 queue workers

The worker count is only configurable for the gitops, bundle and bundledeployment controllers. Cluster and cluster groups are also involved in many requests.

[mmartin24]

Verified in Rancher v2.9-9877ad6f8a6805de6314d739b7023a4a075f525a-head with fleet rancher/fleet:v0.10.4-rc.1

---

Checked 50 workers set by default for ClusterGroup, Bundle, BundleDeployment, ImageScan and Cluster:

Logs:

gh-runner@fleet-e2e-ci-9b62b3b689c74d41bb2fceb39c5fd259:~> k logs -n cattle-fleet-system fleet-controller-7bc9fbfd75-57dlw | grep "worker"
Defaulted container "fleet-controller" out of: fleet-controller, fleet-cleanup, fleet-agentmanagement
{"level":"info","ts":"2024-10-03T13:10:40Z","msg":"Starting workers","controller":"configmap","controllerGroup":"","controllerKind":"ConfigMap","worker count":1}
{"level":"info","ts":"2024-10-03T13:10:40Z","msg":"Starting workers","controller":"clustergroup","controllerGroup":"fleet.cattle.io","controllerKind":"ClusterGroup","worker count":50}
{"level":"info","ts":"2024-10-03T13:11:00Z","msg":"Starting workers","controller":"bundle","controllerGroup":"fleet.cattle.io","controllerKind":"Bundle","worker count":50}
{"level":"info","ts":"2024-10-03T13:11:00Z","msg":"Starting workers","controller":"bundledeployment","controllerGroup":"fleet.cattle.io","controllerKind":"BundleDeployment","worker count":50}
{"level":"info","ts":"2024-10-03T13:11:00Z","msg":"Starting workers","controller":"imagescan","controllerGroup":"fleet.cattle.io","controllerKind":"ImageScan","worker count":50}
{"level":"info","ts":"2024-10-03T13:11:00Z","msg":"Starting workers","controller":"cluster","controllerGroup":"fleet.cattle.io","controllerKind":"Cluster","worker count":50}
time="2024-10-03T14:49:48Z" level=info msg="Removed finalizer test-workercounts-default-qa-test-apps-nginx-app from content resource s-0addd59e48ff2dfc9cb5606b16eca218ffa52ff494837e22210989511b599"

gh-runner@fleet-e2e-ci-9b62b3b689c74d41bb2fceb39c5fd259:~> k get pods -n cattle-fleet-system fleet-controller-7bc9fbfd75-57dlw -o=json | grep "image" | head -1
                "image": "rancher/fleet:v0.10.4-rc.1",