Update dependency kubernetes-sigs/gateway-api to v1.2.1

| datasource  | package                     | from   | to     |
| ----------- | --------------------------- | ------ | ------ |
| github-tags | kubernetes-sigs/gateway-api | v1.2.0 | v1.2.1 |


Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

config/crd/gateway-api/experimental/kustomization.yaml

@@ -1,4 +1,4 @@
 apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
-  - https://github.com/kubernetes-sigs/gateway-api/config/crd/experimental?timeout=120&ref=v1.2.0
+  - https://github.com/kubernetes-sigs/gateway-api/config/crd/experimental?timeout=120&ref=v1.2.1

config/crd/gateway-api/standard/kustomization.yaml

@@ -1,4 +1,4 @@
 apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
-- https://github.com/kubernetes-sigs/gateway-api/config/crd?timeout=120&ref=v1.2.0
+- https://github.com/kubernetes-sigs/gateway-api/config/crd?timeout=120&ref=v1.2.1