integration tests are flaky

[Unix4ever]

ReplaceControlPlanes test:

2024-09-22T02:12:35.3938414Z === NAME  ReplaceControlPlanes/TalosVersionShouldMatchExpected#01
2024-09-22T02:12:35.3939177Z     talos.go:67: clear connection refused err rpc error: code = DeadlineExceeded desc = context deadline exceeded
2024-09-22T02:12:35.3967389Z     talos.go:52: 
2024-09-22T02:12:35.3968027Z         	Error Trace:	/src/cmd/integration-test/pkg/tests/talos.go:52
2024-09-22T02:12:35.3968574Z         	            				/src/cmd/integration-test/pkg/tests/talos.go:421
2024-09-22T02:12:35.3970926Z         	            				/go/pkg/mod/github.com/siderolabs/[email protected]/retry/retry.go:233
2024-09-22T02:12:35.3971658Z         	            				/go/pkg/mod/github.com/siderolabs/[email protected]/retry/retry.go:234
2024-09-22T02:12:35.3972595Z         	            				/go/pkg/mod/github.com/siderolabs/[email protected]/retry/constant.go:56
2024-09-22T02:12:35.3973280Z         	            				/src/cmd/integration-test/pkg/tests/talos.go:420
2024-09-22T02:12:35.3973700Z         	Error:      	Received unexpected error:
2024-09-22T02:12:35.3974072Z         	            	2 error(s) occurred:
2024-09-22T02:12:35.3974395Z         	            		1 error occurred:
2024-09-22T02:12:35.3975173Z         	            		* 172.20.0.2: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing: dial tcp 172.20.0.2:50000: connect: connection refused"
2024-09-22T02:12:35.3975924Z         	            	
2024-09-22T02:12:35.3976161Z         	            	
2024-09-22T02:12:35.3976537Z         	            		rpc error: code = DeadlineExceeded desc = context deadline exceeded
2024-09-22T02:12:35.3977125Z         	Test:       	ReplaceControlPlanes/TalosVersionShouldMatchExpected#01
2024-09-22T02:12:35.3977574Z === NAME  ReplaceControlPlanes

ScaleUpAndDownMachineClassBasedMachineSets test:

2024-09-20T02:21:05.3622997Z === NAME  ScaleUpAndDownMachineClassBasedMachineSets/ClusterKubernetesAPIShouldBeAccessibleViaOmni#02
2024-09-20T02:21:05.3623655Z     kubernetes.go:106: 
2024-09-20T02:21:05.3624303Z         	Error Trace:	/src/cmd/integration-test/pkg/tests/kubernetes.go:106
2024-09-20T02:21:05.3624790Z         	Error:      	Received unexpected error:
2024-09-20T02:21:05.3625159Z         	            	2 error(s) occurred:
2024-09-20T02:21:05.3625547Z         	            		the label omni-uuid is not set
2024-09-20T02:21:05.3625865Z         	            		timeout
2024-09-20T02:21:05.3626421Z         	Test:       	ScaleUpAndDownMachineClassBasedMachineSets/ClusterKubernetesAPIShouldBeAccessibleViaOmni#02
2024-09-20T02:21:05.3626980Z     kubernetes.go:124: 
2024-09-20T02:21:05.3627406Z         	Error Trace:	/src/cmd/integration-test/pkg/tests/kubernetes.go:124
2024-09-20T02:21:05.3628039Z         	Error:      	Should be true
2024-09-20T02:21:05.3628648Z         	Test:       	ScaleUpAndDownMachineClassBasedMachineSets/ClusterKubernetesAPIShouldBeAccessibleViaOmni#02
2024-09-20T02:21:05.3629206Z     kubernetes.go:125: 
2024-09-20T02:21:05.3629634Z         	Error Trace:	/src/cmd/integration-test/pkg/tests/kubernetes.go:125
2024-09-20T02:21:05.3630083Z         	Error:      	Should NOT be empty, but was 
2024-09-20T02:21:05.3630693Z         	Test:       	ScaleUpAndDownMachineClassBasedMachineSets/ClusterKubernetesAPIShouldBeAccessibleViaOmni#02
2024-09-20T02:21:05.3631322Z === NAME  ScaleUpAndDownMachineClassBasedMachineSets