chore(deps): bump sigs.k8s.io/kustomize/api from 0.20.1 to 0.21.0 (#1459)

Bumps [sigs.k8s.io/kustomize/api](https://github.com/kubernetes-sigs/kustomize) from 0.20.1 to 0.21.0.
- [Release notes](https://github.com/kubernetes-sigs/kustomize/releases)
- [Commits](kubernetes-sigs/kustomize@api/v0.20.1...api/v0.21.0)

---
updated-dependencies:
- dependency-name: sigs.k8s.io/kustomize/api
  dependency-version: 0.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

go.mod

@@ -33,8 +33,8 @@ require (
 	sigs.k8s.io/controller-runtime v0.21.0
 	sigs.k8s.io/gateway-api v1.3.0
 	sigs.k8s.io/kind v0.30.0
-	sigs.k8s.io/kustomize/api v0.20.1
-	sigs.k8s.io/kustomize/kyaml v0.20.1
+	sigs.k8s.io/kustomize/api v0.21.0
+	sigs.k8s.io/kustomize/kyaml v0.21.0
 	sigs.k8s.io/yaml v1.6.0
 )
 

go.sum

@@ -223,16 +223,16 @@ github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRI
 github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/power-devops/perfstat v0.0.0-20221212215047-62379fc7944b h1:0LFwY6Q3gMACTjAbMZBjXAqTOzOwFaj2Ld6cjeQ7Rig=
 github.com/power-devops/perfstat v0.0.0-20221212215047-62379fc7944b/go.mod h1:OmDBASR4679mdNQnz2pUhc2G8CO2JrUAVFDRBDP/hJE=
-github.com/rogpeppe/go-internal v1.13.1 h1:KvO1DLK/DRN07sQ1LQKScxyZJuNnedQ5/wKSR38lUII=
-github.com/rogpeppe/go-internal v1.13.1/go.mod h1:uMEvuHeurkdAXX61udpOXGD/AzZDWNMNyH2VO9fmH0o=
+github.com/rogpeppe/go-internal v1.14.1 h1:UQB4HGPB6osV0SQTLymcB4TgvyWu6ZyliaW0tI/otEQ=
+github.com/rogpeppe/go-internal v1.14.1/go.mod h1:MaRKkUm5W0goXpeCfT7UZI6fk/L7L7so1lCWt35ZSgc=
 github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/sagikazarmark/locafero v0.11.0 h1:1iurJgmM9G3PA/I+wWYIOw/5SyBtxapeHDcg+AAIFXc=
 github.com/sagikazarmark/locafero v0.11.0/go.mod h1:nVIGvgyzw595SUSUE6tvCp3YYTeHs15MvlmU87WwIik=
 github.com/samber/lo v1.51.0 h1:kysRYLbHy/MB7kQZf5DSN50JHmMsNEdeY24VzJFu7wI=
 github.com/samber/lo v1.51.0/go.mod h1:4+MXEGsJzbKGaUEQFKBq2xtfuznW9oz/WrgyzMzRoM0=
-github.com/sergi/go-diff v1.2.0 h1:XU+rvMAioB0UC3q1MFrIQy4Vo5/4VsRDQQXHsEya6xQ=
-github.com/sergi/go-diff v1.2.0/go.mod h1:STckp+ISIX8hZLjrqAeVduY0gWCT9IjLuqbuNXdaHfM=
+github.com/sergi/go-diff v1.4.0 h1:n/SP9D5ad1fORl+llWyN+D6qoUETXNZARKjyY2/KVCw=
+github.com/sergi/go-diff v1.4.0/go.mod h1:A0bzQcvG0E7Rwjx0REVgAGH58e96+X0MeOfepqsbeW4=
 github.com/sethvargo/go-password v0.3.1 h1:WqrLTjo7X6AcVYfC6R7GtSyuUQR9hGyAj/f1PYQZCJU=
 github.com/sethvargo/go-password v0.3.1/go.mod h1:rXofC1zT54N7R8K/h1WDUdkf9BOx5OptoxrMBcrXzvs=
 github.com/shirou/gopsutil/v3 v3.24.5 h1:i0t8kL+kQTvpAYToeuiVk3TgDeKOFioZO3Ztz/iZ9pI=
@@ -441,10 +441,10 @@ sigs.k8s.io/json v0.0.0-20241014173422-cfa47c3a1cc8 h1:gBQPwqORJ8d8/YNZWEjoZs7np
 sigs.k8s.io/json v0.0.0-20241014173422-cfa47c3a1cc8/go.mod h1:mdzfpAEoE6DHQEN0uh9ZbOCuHbLK5wOm7dK4ctXE9Tg=
 sigs.k8s.io/kind v0.30.0 h1:2Xi1KFEfSMm0XDcvKnUt15ZfgRPCT0OnCBbpgh8DztY=
 sigs.k8s.io/kind v0.30.0/go.mod h1:FSqriGaoTPruiXWfRnUXNykF8r2t+fHtK0P0m1AbGF8=
-sigs.k8s.io/kustomize/api v0.20.1 h1:iWP1Ydh3/lmldBnH/S5RXgT98vWYMaTUL1ADcr+Sv7I=
-sigs.k8s.io/kustomize/api v0.20.1/go.mod h1:t6hUFxO+Ph0VxIk1sKp1WS0dOjbPCtLJ4p8aADLwqjM=
-sigs.k8s.io/kustomize/kyaml v0.20.1 h1:PCMnA2mrVbRP3NIB6v9kYCAc38uvFLVs8j/CD567A78=
-sigs.k8s.io/kustomize/kyaml v0.20.1/go.mod h1:0EmkQHRUsJxY8Ug9Niig1pUMSCGHxQ5RklbpV/Ri6po=
+sigs.k8s.io/kustomize/api v0.21.0 h1:I7nry5p8iDJbuRdYS7ez8MUvw7XVNPcIP5GkzzuXIIQ=
+sigs.k8s.io/kustomize/api v0.21.0/go.mod h1:XGVQuR5n2pXKWbzXHweZU683pALGw/AMVO4zU4iS8SE=
+sigs.k8s.io/kustomize/kyaml v0.21.0 h1:7mQAf3dUwf0wBerWJd8rXhVcnkk5Tvn/q91cGkaP6HQ=
+sigs.k8s.io/kustomize/kyaml v0.21.0/go.mod h1:hmxADesM3yUN2vbA5z1/YTBnzLJ1dajdqpQonwBL1FQ=
 sigs.k8s.io/randfill v0.0.0-20250304075658-069ef1bbf016/go.mod h1:XeLlZ/jmk4i1HRopwe7/aU3H5n1zNUcX6TM94b3QxOY=
 sigs.k8s.io/randfill v1.0.0 h1:JfjMILfT8A6RbawdsK2JXGBR5AQVfd+9TbzrlneTyrU=
 sigs.k8s.io/randfill v1.0.0/go.mod h1:XeLlZ/jmk4i1HRopwe7/aU3H5n1zNUcX6TM94b3QxOY=