[v12.0/forgejo] fix: PR not blocked by review request for a whitelisted team (#8516)

**Backport:** https://codeberg.org/forgejo/forgejo/pulls/8511

Fixes #8491.

Previous behavior always updated the newly created review to set the `official` flag to false.  This logic was removed.

The likely reason that this logic existed was that team reviews were being marked as official based upon `doer`, rather than the target team, which seems undesirable.  The expected behavior was retained by removing the check for `IsOfficialReviewer(..., doer)`, ensuring that when making a review request for a team, it doesn't matter *who* makes the request.

Co-authored-by: Mathieu Fenniak <mathieu@fenniak.net>
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/8516
Reviewed-by: Gusted <gusted@noreply.codeberg.org>
Co-authored-by: forgejo-backport-action <forgejo-backport-action@noreply.codeberg.org>
Co-committed-by: forgejo-backport-action <forgejo-backport-action@noreply.codeberg.org>

models/fixtures/TestAddTeamReviewRequest/issue.yml

@@ -0,0 +1,16 @@
+-
+  id: 23
+  repo_id: 2
+  index: 3
+  poster_id: 2
+  original_author_id: 0
+  name: protected branch pull
+  content: pull request to a protected branch
+  milestone_id: 0
+  priority: 0
+  is_pull: true
+  is_closed: false
+  num_comments: 0
+  created_unix: 1707270422
+  updated_unix: 1707270422
+  is_locked: false

models/fixtures/TestAddTeamReviewRequest/protected_branch.yml

@@ -0,0 +1,28 @@
+- id: 1
+  repo_id: 2
+  branch_name: protected-main
+  can_push: false
+  enable_whitelist: true
+  whitelist_user_i_ds: [1]
+  whitelist_team_i_ds: []
+  enable_merge_whitelist: true
+  whitelist_deploy_keys: false
+  merge_whitelist_user_i_ds: [1]
+  merge_whitelist_team_i_ds: []
+  enable_status_check: false
+  status_check_contexts: []
+  enable_approvals_whitelist: true
+  approvals_whitelist_user_i_ds: []
+  approvals_whitelist_team_i_ds: [1]
+  required_approvals: 1
+  block_on_rejected_reviews: true
+  block_on_official_review_requests: true
+  block_on_outdated_branch: true
+  dismiss_stale_approvals: true
+  ignore_stale_approvals: false
+  require_signed_commits: false
+  protected_file_patterns: ""
+  unprotected_file_patterns: ""
+  apply_to_admins: true
+  created_unix: 1752513073
+  updated_unix: 1752513073

models/fixtures/TestAddTeamReviewRequest/pull_request.yml

@@ -0,0 +1,12 @@
+-
+  id: 11
+  type: 0 # gitea pull request
+  status: 2 # mergeable
+  issue_id: 23
+  index: 3
+  head_repo_id: 2
+  base_repo_id: 2
+  head_branch: feature/protected-branch-pr
+  base_branch: protected-main
+  merge_base: 4a357436d925b5c974181ff12a994538ddc5a269
+  has_merged: false