Remove repeated examples for merge requests API specs

Contributes to https://gitlab.com/gitlab-org/gitlab/-/issues/212541

.rubocop.yml

@@ -416,13 +416,11 @@ RSpec/RepeatedExample:
     - 'spec/models/project_services/chat_message/pipeline_message_spec.rb'
     - 'spec/models/user_spec.rb'
     - 'spec/models/wiki_page_spec.rb'
-    - 'spec/requests/api/merge_requests_spec.rb'
     - 'spec/routing/admin_routing_spec.rb'
     - 'spec/rubocop/cop/migration/update_large_table_spec.rb'
     - 'spec/services/notification_service_spec.rb'
     - 'spec/services/web_hook_service_spec.rb'
     - 'ee/spec/models/group_spec.rb'
-    - 'ee/spec/requests/api/merge_request_approvals_spec.rb'
     - 'ee/spec/services/boards/lists/update_service_spec.rb'
     - 'ee/spec/services/geo/repository_verification_primary_service_spec.rb'
     - 'ee/spec/workers/geo/file_download_dispatch_worker_spec.rb'

ee/spec/requests/api/merge_request_approvals_spec.rb

@@ -481,28 +481,23 @@ describe API::MergeRequestApprovals do
           approver.update(password: 'password')
         end
 
-        it 'returns a 401 with no password' do
-          approve
-          expect(response).to have_gitlab_http_status(:unauthorized)
-        end
-
         it 'does not approve the merge request with no password' do
           approve
-          expect(merge_request.reload.approvals_left).to eq(2)
-        end
 
-        it 'returns a 401 with incorrect password' do
-          approve
           expect(response).to have_gitlab_http_status(:unauthorized)
+          expect(merge_request.reload.approvals_left).to eq(2)
         end
 
         it 'does not approve the merge request with incorrect password' do
-          approve
+          approve(approval_password: 'incorrect')
+
+          expect(response).to have_gitlab_http_status(:unauthorized)
           expect(merge_request.reload.approvals_left).to eq(2)
         end
 
         it 'approves the merge request with correct password' do
           approve(approval_password: 'password')
+
           expect(response).to have_gitlab_http_status(:created)
           expect(merge_request.reload.approvals_left).to eq(1)
         end

spec/requests/api/merge_requests_spec.rb

@@ -1525,7 +1525,7 @@ describe API::MergeRequests do
 
       it "returns 400 when target_branch is missing" do
         post api("/projects/#{forked_project.id}/merge_requests", user2),
-        params: { title: 'Test merge_request', target_branch: "master", author: user2, target_project_id: project.id }
+        params: { title: 'Test merge_request', source_branch: "master", author: user2, target_project_id: project.id }
         expect(response).to have_gitlab_http_status(:bad_request)
       end