Merge pull request #49677 from dims/send-missing-uid-field-during-webhook-authorize

Automatic merge from submit-queue (batch tested with PRs 50103, 49677, 49449, 43586, 48969)

Add missing UID in SubjectAccessReviewSpec

**What this PR does / why we need it**:
WebhookAuthorizer's Authorize should send *all* the information
present in the user.Info data structure. We are not sending the
UID currently.


**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
The SubjectAccessReview API in the authorization.k8s.io API group now allows providing the user uid.
```

api/openapi-spec/swagger.json

@@ -52583,6 +52583,10 @@
       "description": "ResourceAuthorizationAttributes describes information for a resource access request",
       "$ref": "#/definitions/io.k8s.api.authorization.v1.ResourceAttributes"
      },
+     "uid": {
+      "description": "UID information about the requesting user.",
+      "type": "string"
+     },
      "user": {
       "description": "User is the user you're testing for. If you specify \"User\" but not \"Groups\", then is it interpreted as \"What if User were not a member of any groups",
       "type": "string"
@@ -52798,6 +52802,10 @@
       "description": "ResourceAuthorizationAttributes describes information for a resource access request",
       "$ref": "#/definitions/io.k8s.api.authorization.v1beta1.ResourceAttributes"
      },
+     "uid": {
+      "description": "UID information about the requesting user.",
+      "type": "string"
+     },
      "user": {
       "description": "User is the user you're testing for. If you specify \"User\" but not \"Group\", then is it interpreted as \"What if User were not a member of any groups",
       "type": "string"