flannel CNI: Update from v0.21.4 to v0.21.5

[spowelljr]

Also includes the following changes as per the flannel.yaml at https://github.com/flannel-io/flannel/blob/v0.21.5/Documentation/kube-flannel.yml

• remove cpu and memory limits from manifests flannel-io/flannel#1694
• Add flannel labels Document update flannel-io/flannel#1756

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: spowelljr

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[spowelljr]

/ok-to-test

[minikube-pr-bot]

kvm2 driver with docker runtime

+----------------+----------+---------------------+
|    COMMAND     | MINIKUBE | MINIKUBE (PR 16435) |
+----------------+----------+---------------------+
| minikube start | 48.6s    | 50.8s               |
| enable ingress | 25.8s    | 26.3s               |
+----------------+----------+---------------------+

Times for minikube start: 48.8s 47.0s 51.8s 50.0s 45.6s
Times for minikube (PR 16435) start: 51.7s 47.1s 53.8s 51.3s 50.3s

Times for minikube ingress: 27.6s 24.1s 24.1s 28.6s 24.7s
Times for minikube (PR 16435) ingress: 25.6s 27.1s 27.6s 25.6s 25.6s

docker driver with docker runtime

+----------------+----------+---------------------+
|    COMMAND     | MINIKUBE | MINIKUBE (PR 16435) |
+----------------+----------+---------------------+
| minikube start | 22.3s    | 22.5s               |
| enable ingress | 21.4s    | 21.5s               |
+----------------+----------+---------------------+

Times for minikube start: 20.9s 24.6s 21.0s 24.0s 21.3s
Times for minikube (PR 16435) start: 22.1s 22.3s 22.6s 24.5s 21.1s

Times for minikube ingress: 21.3s 21.8s 20.8s 20.8s 22.3s
Times for minikube (PR 16435) ingress: 23.8s 20.8s 20.8s 20.8s 21.3s

docker driver with containerd runtime

+----------------+----------+---------------------+
|    COMMAND     | MINIKUBE | MINIKUBE (PR 16435) |
+----------------+----------+---------------------+
| minikube start | 21.6s    | 22.3s               |
| enable ingress | 44.5s    | 31.1s               |
+----------------+----------+---------------------+

Times for minikube (PR 16435) start: 23.9s 20.4s 22.8s 20.4s 23.9s
Times for minikube start: 19.6s 23.5s 23.7s 21.0s 20.0s

Times for minikube ingress: 31.3s 31.3s 31.3s 47.3s 81.3s
Times for minikube (PR 16435) ingress: 31.3s 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 (%)
Docker_Linux	TestFunctional/parallel/MountCmd/specific-port (gopogh)	0.64 (chart)
KVM_Linux	TestErrorSpam/setup (gopogh)	1.29 (chart)
KVM_Linux	TestMultiNode/serial/StartAfterStop (gopogh)	14.84 (chart)
Hyper-V_Windows	TestNoKubernetes/serial/StartWithK8s (gopogh)	42.72 (chart)

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