rebase: Bump k8s.io/api from 0.26.2 to 0.26.3 in /api

Bumps [k8s.io/api](https://github.com/kubernetes/api) from 0.26.2 to 0.26.3.
- [Release notes](https://github.com/kubernetes/api/releases)
- [Commits](https://github.com/kubernetes/api/compare/v0.26.2...v0.26.3)

---
updated-dependencies:
- dependency-name: k8s.io/api
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

vendor/k8s.io/api/core/v1/generated.proto

@@ -4512,7 +4512,7 @@ message ResourceRequirements {
   // This is an alpha field and requires enabling the
   // DynamicResourceAllocation feature gate.
   //
-  // This field is immutable.
+  // This field is immutable. It can only be set for containers.
   //
   // +listType=map
   // +listMapKey=name

vendor/k8s.io/api/core/v1/types.go

@@ -2320,7 +2320,7 @@ type ResourceRequirements struct {
 	// This is an alpha field and requires enabling the
 	// DynamicResourceAllocation feature gate.
 	//
-	// This field is immutable.
+	// This field is immutable. It can only be set for containers.
 	//
 	// +listType=map
 	// +listMapKey=name

vendor/k8s.io/api/core/v1/types_swagger_doc_generated.go

@@ -2041,7 +2041,7 @@ var map_ResourceRequirements = map[string]string{
 	"":         "ResourceRequirements describes the compute resource requirements.",
 	"limits":   "Limits describes the maximum amount of compute resources allowed. More info: https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/",
 	"requests": "Requests describes the minimum amount of compute resources required. If Requests is omitted for a container, it defaults to Limits if that is explicitly specified, otherwise to an implementation-defined value. More info: https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/",
-	"claims":   "Claims lists the names of resources, defined in spec.resourceClaims, that are used by this container.\n\nThis is an alpha field and requires enabling the DynamicResourceAllocation feature gate.\n\nThis field is immutable.",
+	"claims":   "Claims lists the names of resources, defined in spec.resourceClaims, that are used by this container.\n\nThis is an alpha field and requires enabling the DynamicResourceAllocation feature gate.\n\nThis field is immutable. It can only be set for containers.",
 }
 
 func (ResourceRequirements) SwaggerDoc() map[string]string {