fix: allow empty string for condition reason

hack/validation/status.sh

@@ -1,4 +1,5 @@
 # Updating the set of required items in our status conditions so that we support older versions of the condition
 # TODO: This can be removed once we upgrade to v1 and can do conversion to automatically set values for old versions of the condition
 yq eval 'del(.spec.versions[0].schema.openAPIV3Schema.properties.status.properties.conditions.items.properties.reason.minLength)' -i pkg/apis/crds/karpenter.sh_nodeclaims.yaml
+yq eval '.spec.versions[0].schema.openAPIV3Schema.properties.status.properties.conditions.items.properties.reason.pattern = "(^[A-Za-z]([A-Za-z0-9_,:]*[A-Za-z0-9_])?$|^$)"' -i pkg/apis/crds/karpenter.sh_nodeclaims.yaml
 yq eval '.spec.versions[0].schema.openAPIV3Schema.properties.status.properties.conditions.items.required = ["lastTransitionTime","status","type"]' -i pkg/apis/crds/karpenter.sh_nodeclaims.yaml

pkg/apis/crds/karpenter.sh_nodeclaims.yaml

@@ -413,8 +413,8 @@ spec:
                           The value should be a CamelCase string.
                           This field may not be empty.
                         maxLength: 1024
-                        pattern: ^[A-Za-z]([A-Za-z0-9_,:]*[A-Za-z0-9_])?$
                         type: string
+                        pattern: (^[A-Za-z]([A-Za-z0-9_,:]*[A-Za-z0-9_])?$|^$)
                       status:
                         description: status of the condition, one of True, False, Unknown.
                         enum: