Fix no-limit option for config validation

[spowelljr]

Before:

$ minikube config set cpus no-limit

❌  Exiting due to MK_CONFIG_SET: Set failed: run validations for "cpus" with value of "no-limit": [cpus:strconv.Atoi: parsing "no-limit": invalid syntax]

╭─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│                                                                                                                         │
│    😿  If the above advice does not help, please let us know:                                                           │
│    👉  https://github.com/kubernetes/minikube/issues/new/choose                                                         │
│                                                                                                                         │
│    Please run `minikube logs --file=logs.txt` and attach logs.txt to the GitHub issue.                                  │
│    Please also attach the following file to the GitHub issue:                                                           │
│    - /var/folders/9l/6wpxv6wd1b901m1146r579wc00rqw3/T/minikube_config_f2ac5a775a933d63b384f05046e49d1328797158_0.log    │
│                                                                                                                         │
╰─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯

After:

$ minikube config set cpus no-limit
❗  These changes will take effect upon a minikube delete and then a minikube start

[medyagh]

/ok-to-test

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: medyagh, spowelljr

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[minikube-pr-bot]

kvm2 driver with docker runtime

+----------------+----------+---------------------+
|    COMMAND     | MINIKUBE | MINIKUBE (PR 17530) |
+----------------+----------+---------------------+
| minikube start | 51.2s    | 50.9s               |
| enable ingress | 27.1s    | 27.0s               |
+----------------+----------+---------------------+

Times for minikube (PR 17530) start: 50.4s 52.2s 50.3s 50.3s 51.3s
Times for minikube start: 52.7s 51.6s 50.5s 51.0s 50.0s

Times for minikube ingress: 25.1s 26.7s 28.6s 27.1s 28.2s
Times for minikube (PR 17530) ingress: 27.7s 28.1s 27.5s 24.6s 27.2s

docker driver with docker runtime

+----------------+----------+---------------------+
|    COMMAND     | MINIKUBE | MINIKUBE (PR 17530) |
+----------------+----------+---------------------+
| minikube start | 22.3s    | 24.0s               |
| enable ingress | 20.8s    | 20.0s               |
+----------------+----------+---------------------+

Times for minikube start: 21.9s 21.7s 24.0s 21.7s 22.0s
Times for minikube (PR 17530) start: 23.8s 24.1s 24.9s 24.6s 22.3s

Times for minikube ingress: 21.8s 20.8s 19.8s 20.8s 20.8s
Times for minikube (PR 17530) ingress: 18.8s 18.8s 20.8s 20.8s 20.8s

docker driver with containerd runtime

+----------------+----------+---------------------+
|    COMMAND     | MINIKUBE | MINIKUBE (PR 17530) |
+----------------+----------+---------------------+
| minikube start | 22.6s    | 22.4s               |
| enable ingress | 34.1s    | 28.7s               |
+----------------+----------+---------------------+

Times for minikube start: 24.4s 20.9s 23.6s 20.8s 23.5s
Times for minikube (PR 17530) start: 20.9s 23.6s 23.2s 23.9s 20.6s

Times for minikube ingress: 47.3s 31.3s 30.3s 31.3s 30.3s
Times for minikube (PR 17530) ingress: 19.3s 31.3s 30.3s 31.3s 31.3s

[minikube-pr-bot]

These are the flake rates of all failed tests.

Environment	Failed Tests	Flake Rate (%)
KVM_Linux	TestMultiNode/serial/AddNode (gopogh)	0.00 (chart)
KVM_Linux	TestMultiNode/serial/CopyFile (gopogh)	0.00 (chart)
KVM_Linux	TestMultiNode/serial/DeployApp2Nodes (gopogh)	0.00 (chart)
KVM_Linux	TestMultiNode/serial/FreshStart2Nodes (gopogh)	0.00 (chart)
KVM_Linux	TestMultiNode/serial/PingHostFrom2Pods (gopogh)	0.00 (chart)
KVM_Linux	TestMultiNode/serial/StopNode (gopogh)	0.00 (chart)
KVM_Linux_containerd	TestAddons/parallel/CloudSpanner (gopogh)	1.69 (chart)
KVM_Linux	TestMultiNode/serial/StartAfterStop (gopogh)	1.71 (chart)
KVM_Linux_containerd	TestFunctional/serial/ExtraConfig (gopogh)	4.24 (chart)
KVM_Linux_containerd	TestFunctional/serial/SoftStart (gopogh)	4.24 (chart)
KVM_Linux_containerd	TestFunctional/serial/ComponentHealth (gopogh)	5.08 (chart)
Hyperkit_macOS	TestFunctional/parallel/CertSync (gopogh)	7.96 (chart)
Hyperkit_macOS	TestFunctional/parallel/CpCmd (gopogh)	7.96 (chart)
Hyperkit_macOS	TestFunctional/parallel/DashboardCmd (gopogh)	7.96 (chart)
Hyperkit_macOS	TestFunctional/parallel/DockerEnv/bash (gopogh)	7.96 (chart)
Hyperkit_macOS	TestFunctional/parallel/FileSync (gopogh)	7.96 (chart)
Hyperkit_macOS	TestFunctional/parallel/ImageCommands/ImageBuild (gopogh)	7.96 (chart)
Hyperkit_macOS	TestFunctional/parallel/ImageCommands/ImageListJson (gopogh)	7.96 (chart)
Hyperkit_macOS	TestFunctional/parallel/ImageCommands/ImageListShort (gopogh)	7.96 (chart)
Hyperkit_macOS	TestFunctional/parallel/ImageCommands/ImageListTable (gopogh)	7.96 (chart)
Hyperkit_macOS	TestFunctional/parallel/ImageCommands/ImageListYaml (gopogh)	7.96 (chart)
Hyperkit_macOS	TestFunctional/parallel/ImageCommands/ImageLoadDaemon (gopogh)	7.96 (chart)
Hyperkit_macOS	TestFunctional/parallel/ImageCommands/ImageLoadFromFile (gopogh)	7.96 (chart)
Hyperkit_macOS	TestFunctional/parallel/ImageCommands/ImageReloadDaemon (gopogh)	7.96 (chart)
Hyperkit_macOS	TestFunctional/parallel/ImageCommands/ImageSaveToFile (gopogh)	7.96 (chart)
Hyperkit_macOS	TestFunctional/parallel/ImageCommands/ImageTagAndLoadDaemon (gopogh)	7.96 (chart)
Hyperkit_macOS	TestFunctional/parallel/MySQL (gopogh)	7.96 (chart)
Hyperkit_macOS	TestFunctional/parallel/NodeLabels (gopogh)	7.96 (chart)
Hyperkit_macOS	TestFunctional/parallel/NonActiveRuntimeDisabled (gopogh)	7.96 (chart)
Hyperkit_macOS	TestFunctional/parallel/PersistentVolumeClaim (gopogh)	7.96 (chart)
More tests...	Continued...

Too many tests failed - See test logs for more details.

To see the flake rates of all tests by environment, click here.