fix(test): bump cert-manager version

new minor cert-manager version will be used in testdata projects

Signed-off-by: Mario Constanti <mario.constanti@mercedes-benz.com>

Author: bavarianbidi

testdata/project-v4-multigroup/go.mod

@@ -3,7 +3,7 @@ module sigs.k8s.io/kubebuilder/testdata/project-v4-multigroup
 go 1.24.0
 
 require (
-	github.com/cert-manager/cert-manager v1.18.1
+	github.com/cert-manager/cert-manager v1.18.2
 	github.com/onsi/ginkgo/v2 v2.22.0
 	github.com/onsi/gomega v1.36.1
 	k8s.io/api v0.33.0

testdata/project-v4/go.mod

@@ -3,7 +3,7 @@ module sigs.k8s.io/kubebuilder/testdata/project-v4
 go 1.24.0
 
 require (
-	github.com/cert-manager/cert-manager v1.18.1
+	github.com/cert-manager/cert-manager v1.18.2
 	github.com/onsi/ginkgo/v2 v2.22.0
 	github.com/onsi/gomega v1.36.1
 	k8s.io/api v0.33.0