Flake starting control plane in TestAssertExpressions

From an attempt with `-count 100`: ``` 2025-11-19T07:51:04.9054760Z === RUN TestAssertExpressions 2025-11-19T07:51:04.9054855Z expression_integration_test.go:46: 2025-11-19T07:51:04.9055233Z Error Trace: /home/runner/work/kuttl/kuttl/internal/step/expression_integration_test.go:46 2025-11-19T07:51:04.9055414Z Error: Received unexpected error: 2025-11-19T07:51:04.9056409Z unable to start control plane itself: failed to start the controlplane. retried 5 times: timeout waiting for process kube-apiserver to start successfully (it may have failed to start, or stopped unexpectedly before becoming ready) 2025-11-19T07:51:04.9056603Z Test: TestAssertExpressions 2025-11-19T07:51:04.9056698Z --- FAIL: TestAssertExpressions (216.32s) 2025-11-19T07:51:04.9056916Z panic: runtime error: invalid memory address or nil pointer dereference [recovered] 2025-11-19T07:51:04.9057088Z panic: runtime error: invalid memory address or nil pointer dereference 2025-11-19T07:51:04.9057255Z [signal SIGSEGV: segmentation violation code=0x1 addr=0x20 pc=0x28da73b] 2025-11-19T07:51:04.9057264Z 2025-11-19T07:51:04.9057445Z goroutine 23919 [running]: 2025-11-19T07:51:04.9057562Z testing.tRunner.func1.2({0x2b3c4a0, 0x43be610}) 2025-11-19T07:51:04.9064121Z /home/runner/go/pkg/mod/golang.org/toolchain@v0.0.1-go1.24.0.linux-amd64/src/testing/testing.go:1734 +0x3eb 2025-11-19T07:51:04.9064223Z testing.tRunner.func1() 2025-11-19T07:51:04.9064691Z /home/runner/go/pkg/mod/golang.org/toolchain@v0.0.1-go1.24.0.linux-amd64/src/testing/testing.go:1737 +0x696 2025-11-19T07:51:04.9064805Z panic({0x2b3c4a0?, 0x43be610?}) 2025-11-19T07:51:04.9065144Z /home/runner/go/pkg/mod/golang.org/toolchain@v0.0.1-go1.24.0.linux-amd64/src/runtime/panic.go:787 +0x132 2025-11-19T07:51:04.9065374Z github.com/kudobuilder/kuttl/internal/step.TestAssertExpressions(0xc00094c700) 2025-11-19T07:51:04.9065643Z /home/runner/work/kuttl/kuttl/internal/step/expression_integration_test.go:91 +0x85b 2025-11-19T07:51:04.9065734Z testing.tRunner(0xc00094c700, 0x2f49ca0) 2025-11-19T07:51:04.9066436Z /home/runner/go/pkg/mod/golang.org/toolchain@v0.0.1-go1.24.0.linux-amd64/src/testing/testing.go:1792 +0x226 2025-11-19T07:51:04.9066614Z created by testing.(*T).Run in goroutine 1 2025-11-19T07:51:04.9067007Z /home/runner/go/pkg/mod/golang.org/toolchain@v0.0.1-go1.24.0.linux-amd64/src/testing/testing.go:1851 +0x8f3 2025-11-19T07:51:04.9067234Z FAIL github.com/kudobuilder/kuttl/internal/step 1538.867s ``` This might be due to improperly cleaning up envtest instances, as at the end of the run the following was present in the log: ``` 2025-11-19T07:51:05.6566896Z Cleaning up orphan processes 2025-11-19T07:51:05.8183441Z Terminate orphan process: pid (16670) (etcd) 2025-11-19T07:51:05.8213486Z Terminate orphan process: pid (16938) (kube-apiserver) 2025-11-19T07:51:05.8241649Z Terminate orphan process: pid (17418) (etcd) 2025-11-19T07:51:05.8274412Z Terminate orphan process: pid (17435) (kube-apiserver) 2025-11-19T07:51:05.8341189Z Terminate orphan process: pid (18909) (etcd) 2025-11-19T07:51:05.8371519Z Terminate orphan process: pid (19184) (kube-apiserver) 2025-11-19T07:51:05.8408609Z Terminate orphan process: pid (20536) (etcd) 2025-11-19T07:51:05.8449611Z Terminate orphan process: pid (20682) (kube-apiserver) 2025-11-19T07:51:05.8496479Z Terminate orphan process: pid (21965) (etcd) 2025-11-19T07:51:05.8531364Z Terminate orphan process: pid (21981) (kube-apiserver) 2025-11-19T07:51:05.8562021Z Terminate orphan process: pid (23844) (etcd) 2025-11-19T07:51:05.8600068Z Terminate orphan process: pid (23861) (kube-apiserver) 2025-11-19T07:51:05.8634600Z Terminate orphan process: pid (25697) (etcd) 2025-11-19T07:51:05.8670434Z Terminate orphan process: pid (25756) (kube-apiserver) 2025-11-19T07:51:05.8721295Z Terminate orphan process: pid (27436) (etcd) 2025-11-19T07:51:05.8770364Z Terminate orphan process: pid (27533) (kube-apiserver) 2025-11-19T07:51:05.8893720Z Terminate orphan process: pid (29152) (etcd) 2025-11-19T07:51:05.8968539Z Terminate orphan process: pid (29409) (kube-apiserver) 2025-11-19T07:51:05.9087680Z Terminate orphan process: pid (31037) (etcd) 2025-11-19T07:51:05.9136259Z Terminate orphan process: pid (31091) (kube-apiserver) 2025-11-19T07:51:05.9257050Z Terminate orphan process: pid (32959) (etcd) 2025-11-19T07:51:05.9290267Z Terminate orphan process: pid (32975) (kube-apiserver) 2025-11-19T07:51:05.9344210Z Terminate orphan process: pid (34354) (etcd) 2025-11-19T07:51:05.9380569Z Terminate orphan process: pid (34440) (kube-apiserver) 2025-11-19T07:51:05.9414714Z Terminate orphan process: pid (35995) (etcd) 2025-11-19T07:51:05.9458735Z Terminate orphan process: pid (36161) (kube-apiserver) 2025-11-19T07:51:05.9500763Z Terminate orphan process: pid (37478) (etcd) 2025-11-19T07:51:05.9539059Z Terminate orphan process: pid (37650) (kube-apiserver) 2025-11-19T07:51:05.9763416Z Terminate orphan process: pid (39453) (etcd) 2025-11-19T07:51:05.9826702Z Terminate orphan process: pid (39490) (kube-apiserver) 2025-11-19T07:51:05.9869776Z Terminate orphan process: pid (41404) (etcd) 2025-11-19T07:51:05.9916806Z Terminate orphan process: pid (41420) (kube-apiserver) 2025-11-19T07:51:06.0010079Z Terminate orphan process: pid (43037) (etcd) [and more...] ```