Return GraphQL response as `GdsApi::Response` #874

Job	Run time
test_matrix (3.1)	22s
test_matrix (3.2)	23s
test_matrix (3.3)	26s
Dependency Review scan / dependency-review-pr	3s
CodeQL SAST scan / Analyze	56s
Dependency Review scan / dependency-review-push	0s
test	1s
generate_pacts	21s
asset_manager_pact / Verify pact tests	1m 6s
account_api_pact / Verify pact tests	45s
collections_pact / Verify pact tests	16s
email_alert_api_pact / Verify pact tests	46s
frontend_pact / Verify pact tests	14s
link_checker_api_pact / Verify pact tests	1m 7s
locations_api_pact / Verify pact tests	42s
places_manager_pact / Verify pact tests	44s
publishing_api_pact / Verify pact tests	2m 24s
support_api_pact / Verify pact tests	39s
publish_pacts	14s
publish_gem	0s
	11m 29s

Provide feedback