CM-997: Update vendor after Go 1.26 bump

Refresh vendor/modules.txt and gofmt client_test.go so verify-deps passes in CI.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: arun717

pkg/controller/common/client_test.go

@@ -48,7 +48,7 @@ func (f *fakeManager) AddReadyzCheck(string, healthz.Checker) error            {
 func (f *fakeManager) GetWebhookServer() webhook.Server                        { return nil }
 func (f *fakeManager) GetLogger() logr.Logger                                  { return logr.Discard() }
 func (f *fakeManager) GetControllerOptions() config.Controller                 { return config.Controller{} }
-func (f *fakeManager) GetConverterRegistry() conversion.Registry             { return nil }
+func (f *fakeManager) GetConverterRegistry() conversion.Registry               { return nil }
 
 // sentinelClient is a non-nil client.Client stub so NewClient tests can assert manager wiring
 // (pointer identity) without controller-runtime's fake client (not vendored).

vendor/modules.txt

@@ -1337,7 +1337,7 @@ github.com/openshift/build-machinery-go/make/targets/openshift
 github.com/openshift/build-machinery-go/make/targets/openshift/operator
 github.com/openshift/build-machinery-go/scripts
 # github.com/openshift/cert-manager-operator v0.0.0-00010101000000-000000000000 => .
-## explicit; go 1.25.0
+## explicit; go 1.26.0
 # github.com/openshift/client-go v0.0.0-20260330134249-7e1499aaacd7
 ## explicit; go 1.25.0
 github.com/openshift/client-go/config/applyconfigurations