fix(deps): update module github.com/fluxcd/kustomize-controller/api to v1.8.3

Author: renovate[bot]

go.mod

@@ -5,7 +5,7 @@ go 1.26.1
 require (
 	github.com/fluxcd/flux2/v2 v2.8.3
 	github.com/fluxcd/helm-controller/api v1.5.3
-	github.com/fluxcd/kustomize-controller/api v1.8.2
+	github.com/fluxcd/kustomize-controller/api v1.8.3
 	github.com/fluxcd/source-controller/api v1.8.1
 	github.com/stretchr/testify v1.11.1
 	k8s.io/api v0.35.3

go.sum

@@ -27,8 +27,8 @@ github.com/fluxcd/flux2/v2 v2.8.3 h1:obZYHj98hS1w9eo4LWSam4I2p7M7925jpmZqllGqaog
 github.com/fluxcd/flux2/v2 v2.8.3/go.mod h1:9ZPbVw+/5i7xZt82IYif3VYZ85nI0wSYMOwhq53Rabc=
 github.com/fluxcd/helm-controller/api v1.5.3 h1:ruLzuyTHjjE9A5B/U+Id2q7yHXXqSFTswdZ14xCS5So=
 github.com/fluxcd/helm-controller/api v1.5.3/go.mod h1:lTgeUmtVYExMKp7mRDncsr4JwHTz3LFtLjRJZeR98lI=
-github.com/fluxcd/kustomize-controller/api v1.8.2 h1:LcFUjJccwNrhCo7pQBBneLAlHfZZcb58bWB2LnyFwag=
-github.com/fluxcd/kustomize-controller/api v1.8.2/go.mod h1:c/mUPIffDDLg1EicXCJtX4N/rc+z5Zh0e/CXjhd7Dyc=
+github.com/fluxcd/kustomize-controller/api v1.8.3 h1:Ux9AAOY0lkP6FgRg5/b/ITvRSy8lz6VBBaZ9bXmTLmI=
+github.com/fluxcd/kustomize-controller/api v1.8.3/go.mod h1:c/mUPIffDDLg1EicXCJtX4N/rc+z5Zh0e/CXjhd7Dyc=
 github.com/fluxcd/pkg/apis/acl v0.9.0 h1:wBpgsKT+jcyZEcM//OmZr9RiF8klL3ebrDp2u2ThsnA=
 github.com/fluxcd/pkg/apis/acl v0.9.0/go.mod h1:TttNS+gocsGLwnvmgVi3/Yscwqrjc17+vhgYfqkfrV4=
 github.com/fluxcd/pkg/apis/kustomize v1.15.1 h1:t9QZh+3ZS8EKmlxrnnbcKZcGTrg8FDvMF1T8BHMCuqI=