fix(backend): graphql resolver tests #1298

Job	Run time
prerequisite	37s
version-generator	8s
docker-build (linux/amd64, amd64, auth)	1m 12s
docker-build (linux/amd64, amd64, backend)	1m 13s
docker-build (linux/amd64, amd64, frontend)	1m 26s
docker-build (linux/arm64, arm64, auth)	1m 32s
docker-build (linux/arm64, arm64, backend)	1m 29s
docker-build (linux/arm64, arm64, frontend)	1m 34s
auth	1m 5s
frontend	33s
backend	2m 33s
codeql-analyze (javascript, ./.github/codeql/source.yml)	2m 32s
codeql-analyze (javascript, ./.github/codeql/tests.yml)	2m 4s
graphql (auth)	2m 27s
integration-test	1m 40s
mock-account-servicing-entity	39s
graphql (backend)	2m 28s
token-introspection	33s
Docker Trivy Scan	0s
Docker Grype Scan	0s
node-build	0s
Push to registry	0s
generate-release	0s
	25m 45s

Provide feedback