BulkImports: Avoid import ProjectLabels in the Group import level

Related to: https://gitlab.com/gitlab-org/gitlab/-/issues/300446

changelogs/unreleased/kassio-bulkimports-filter-group-labels.yml

+---
+title: 'BulkImports: Avoid import ProjectLabels in the Group import level'
+merge_request: 54580
+author:
+type: changed

lib/bulk_imports/groups/graphql/get_labels_query.rb

@@ -10,7 +10,7 @@ module BulkImports
           <<-'GRAPHQL'
           query ($full_path: ID!, $cursor: String) {
             group(fullPath: $full_path) {
-              labels(first: 100, after: $cursor) {
+              labels(first: 100, after: $cursor, onlyGroupLabels: true) {
                 page_info: pageInfo {
                   end_cursor: endCursor
                   has_next_page: hasNextPage

spec/lib/bulk_imports/groups/graphql/get_labels_query_spec.rb

@@ -3,15 +3,18 @@
 require 'spec_helper'
 
 RSpec.describe BulkImports::Groups::Graphql::GetLabelsQuery do
-  describe '#variables' do
-    let(:entity) { double(source_full_path: 'test', next_page_for: 'next_page', bulk_import: nil) }
-    let(:context) { BulkImports::Pipeline::Context.new(entity) }
-
-    it 'returns query variables based on entity information' do
-      expected = { full_path: entity.source_full_path, cursor: entity.next_page_for }
-
-      expect(described_class.variables(context)).to eq(expected)
-    end
+  it 'has a valid query' do
+    entity = create(:bulk_import_entity)
+    context = BulkImports::Pipeline::Context.new(entity)
+
+    query = GraphQL::Query.new(
+      GitlabSchema,
+      described_class.to_s,
+      variables: described_class.variables(context)
+    )
+    result = GitlabSchema.static_validator.validate(query)
+
+    expect(result[:errors]).to be_empty
   end
 
   describe '#data_path' do