Don't reset cluster and collect capz controller log if cluster creation timeout

[lzhecheng]

/kind bug

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What steps did you take and what happened:
[A clear and concise description of what the bug is.]
Notice: The issue is about collecting log not the cluster failure below.
There's a cluster creation failure recently and its capz controller log is lost.
https://prow.k8s.io/view/gs/kubernetes-jenkins/logs/cloud-provider-azure-master-ipv6-capz-1-26/1754248546623688704

The reason why log is lost is that the script reset the mgmt cluster capz after workload cluster creation failure. I think the logic should be improved.

# Get kubeconfig and store it locally.
/home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin/kubectl-v1.25.6 get secrets capz-4yv7h7-kubeconfig -o json | jq -r .data.value | base64 --decode > ./kubeconfig
timeout --foreground 600 bash -c "while ! /home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin/kubectl-v1.25.6 --kubeconfig=./kubeconfig get nodes | grep control-plane; do sleep 1; done"
Unable to connect to the server: dial tcp 52.177.48.112:6443: i/o timeout
Unable to connect to the server: dial tcp 52.177.48.112:6443: i/o timeout
Unable to connect to the server: dial tcp 52.177.48.112:6443: i/o timeout
make[1]: *** [Makefile:346: create-workload-cluster] Error 124
make[1]: Leaving directory '/home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure'
make: *** [Makefile:373: create-cluster] Error 2
================ MAKE CLEAN ===============
make clean-bin
make[1]: Entering directory '/home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure'
rm -rf bin
rm -rf hack/tools/bin
make[1]: Leaving directory '/home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure'
make clean-temporary
make[1]: Entering directory '/home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure'
rm -f minikube.kubeconfig
rm -f kubeconfig
rm -f *.kubeconfig
make[1]: Leaving directory '/home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure'
================ KIND RESET ===============
GOBIN=/home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin ./scripts/go_install.sh sigs.k8s.io/kind kind v0.20.0
/home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin/kind-v0.20.0 delete cluster --name=capz || true
Deleting cluster "capz" ...
Deleted nodes: ["capz-control-plane"]
/home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin/kind-v0.20.0 delete cluster --name=capz-e2e || true
Deleting cluster "capz-e2e" ...
================ INSTALL TOOLS ===============
Unable to connect to the server: dial tcp 52.177.48.112:6443: i/o timeout
GOBIN=/home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin ./scripts/go_install.sh github.com/drone/envsubst/v2/cmd/envsubst envsubst v2.0.0-20210730161058-179042472c46
GOBIN=/home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin ./scripts/go_install.sh sigs.k8s.io/kustomize/kustomize/v4 kustomize v4.5.2
mkdir -p /home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin
rm -f "/home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin/kubectl*"
curl --retry 3 -fsL https://dl.k8s.io/release/v1.25.6/bin/linux/amd64/kubectl -o /home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin/kubectl-v1.25.6
ln -sf /home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin/kubectl-v1.25.6 /home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin/kubectl
chmod +x /home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin/kubectl-v1.25.6 /home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin/kubectl
mkdir -p /home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin
rm -f "/home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin/helm*"
curl --retry 3 -fsSL -o /home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin/get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3
chmod 700 /home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin/get_helm.sh
USE_SUDO=false HELM_INSTALL_DIR=/home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin DESIRED_VERSION=v3.12.2 BINARY_NAME=helm-v3.12.2 /home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin/get_helm.sh
Downloading https://get.helm.sh/helm-v3.12.2-linux-amd64.tar.gz
Verifying checksum... Done.
Preparing to install helm-v3.12.2 into /home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin
helm-v3.12.2 installed into /home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin/helm-v3.12.2
ln -sf /home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin/helm-v3.12.2 /home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin/helm
rm -f /home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin/get_helm.sh
GOBIN=/home/prow/go/src/sigs.k8s.io/cluster-api-provider-azure/hack/tools/bin ./scripts/go_install.sh github.com/onsi/ginkgo/v2/ginkgo ginkgo v2.13.1
Unable to find kubeconfig for kind mgmt cluster capz
Collecting logs for cluster capz-4yv7h7 in namespace default and dumping logs to /logs/artifacts
panic: Failed to get ClientConfig from "/root/.kube/config"
Unexpected error:
    <clientcmd.errConfigurationInvalid | len:1, cap:1>: 
    invalid configuration: no configuration has been provided, try setting KUBERNETES_MASTER environment variable
    [
        <*clientcmd.errEmptyConfig | 0x508a920>{
            message: "no configuration has been provided, try setting KUBERNETES_MASTER environment variable",
        },
    ]
occurred

What did you expect to happen:
CAPZ controller log is collected after cluster creation timeout.

Anything else you would like to add:
[Miscellaneous information that will assist in solving the issue.]

Environment:

• cluster-api-provider-azure version:
• Kubernetes version: (use kubectl version):
• OS (e.g. from /etc/os-release):