test: tolerate cloud-provider-uninitialized taint on Windows validation pods - #9204

=== RUN   Test_Windows2022CachingRegression
=== PAUSE Test_Windows2022CachingRegression
=== CONT  Test_Windows2022CachingRegression
    test_helpers.go:412: [4.354s] TAGS {Name:Test_Windows2022CachingRegression ImageName:windows-2022-containerd-gen2 OS:windows Arch:amd64 NetworkIsolated:false NonAnonymousACR:false GPU:false WASM:false Kata:false BootstrapTokenFallback:false KubeletCustomConfig:false Scriptless:false VHDCaching:false MockAzureChinaCloud:false RCV1PCertMode:false VMSeriesCoverageTest:false}
    test_helpers.go:222: [4.354s] → running scenario...
    test_helpers.go:239: [13.268s] using cluster abe2e-azure-network-v4-ce2ad in rg=abe2e-westus3 sub=8ecadfc9-d1a3-4ea4-b844-0d9f87e4d7c8
    test_helpers.go:240: [13.268s] portal: https://portal.azure.com/#@microsoft.onmicrosoft.com/resource/subscriptions/8ecadfc9-d1a3-4ea4-b844-0d9f87e4d7c8/resourceGroups/abe2e-westus3/providers/Microsoft.ContainerService/managedClusters/abe2e-azure-network-v4-ce2ad/overview
    test_helpers.go:272: [13.291s] → preparing AKS node...
    vmss.go:369: [25.245s] → creating VMSS win56nu...
    vmss.go:263: [25.250s] VMSS portal link: https://ms.portal.azure.com/#@microsoft.onmicrosoft.com/resource/subscriptions/8ecadfc9-d1a3-4ea4-b844-0d9f87e4d7c8/resourceGroups/MC_abe2e-westus3_abe2e-azure-network-v4-ce2ad_westus3/providers/Microsoft.Compute/virtualMachineScaleSets/win56nu/overview
    vmss.go:269: [25.250s] Managed cluster portal link: https://ms.portal.azure.com/#@microsoft.onmicrosoft.com/resource/subscriptions/8ecadfc9-d1a3-4ea4-b844-0d9f87e4d7c8/resourceGroups/MC_abe2e-westus3_abe2e-azure-network-v4-ce2ad_westus3/providers/Microsoft.ContainerService/managedClusters/abe2e-azure-network-v4-ce2ad/overview
    vmss.go:401: [46.673s] VM will be automatically deleted after the test finishes, to preserve it for debugging purposes set KEEP_VMSS=true or pause the test with a breakpoint before the test finishes or failed
    vmss.go:405: [46.673s] SSH Instructions: (may take a few minutes for the VM to be ready for SSH)
        ========================
        az network bastion ssh --target-resource-id "/subscriptions/8ecadfc9-d1a3-4ea4-b844-0d9f87e4d7c8/resourceGroups/MC_abe2e-westus3_abe2e-azure-network-v4-ce2ad_westus3/providers/Microsoft.Compute/virtualMachineScaleSets/win56nu/virtualMachines/0" --name "abe2e-shared-bastion" --resource-group abe2e-westus3 --auth-type ssh-key --username azureuser --ssh-key /tmp/private-key-1803728877
        
    vmss.go:463: [244.646s] VMSS win56nu (id: /subscriptions/8ecadfc9-d1a3-4ea4-b844-0d9f87e4d7c8/resourceGroups/MC_abe2e-westus3_abe2e-azure-network-v4-ce2ad_westus3/providers/Microsoft.Compute/virtualMachineScaleSets/win56nu) tags after creation (3):
    vmss.go:480: [244.646s]   tag: buildID = local
    vmss.go:480: [244.646s]   tag: owner = 4cac0ed4-fd59-4da6-b9a5-d4bc46bbbb14
    vmss.go:477: [244.646s]   tag: platformsettings.host_environment.service.platform_optedin_for_rootcerts = true [RCV1P opt-in tag — platform-injected]
    bastionssh.go:304: [244.647s] Attempt 1/5 establishing SSH over bastion to 10.14.0.94
    vmss.go:510: [246.764s] VM reached running state
    vmss.go:463: [246.764s] VM instance 0 (id: /subscriptions/8ecadfc9-d1a3-4ea4-b844-0d9f87e4d7c8/resourceGroups/MC_abe2e-westus3_abe2e-azure-network-v4-ce2ad_westus3/providers/Microsoft.Compute/virtualMachineScaleSets/win56nu/virtualMachines/0) tags after running (3):
    vmss.go:480: [246.764s]   tag: buildID = local
    vmss.go:480: [246.764s]   tag: owner = 4cac0ed4-fd59-4da6-b9a5-d4bc46bbbb14
    vmss.go:477: [246.764s]   tag: platformsettings.host_environment.service.platform_optedin_for_rootcerts = true [RCV1P opt-in tag — inherited from VMSS, platform-injected]
    vmss.go:442: [246.764s] ✓ creating VMSS win56nu done (221.5s)
    kube.go:170: [246.832s] → 
... [The stack trace has been truncated as it exceeded the maximum allowed size. Please refer to the complete log available in the Test Run attachments for full details.]