cancel old graphql requests when new ones are run #7412

Job	Run time
Build (20, frontend)	1m 41s
Build (20, test-app)	1m 9s
Build (20, lti-course-manager)	1m 11s
Build (20, lti-dashboard)	1m 9s
Test Deploy Build (20, frontend)	2m 1s
Lint	1m 13s
Test Deploy Build (20, lti-course-manager)	1m 7s
Test Deploy Build (20, lti-dashboard)	1m 6s
Test (20, frontend)	4m 45s
Test (20, test-app)	2m 12s
Test (20, lti-course-manager)	52s
Test (20, lti-dashboard)	1m 4s
Scan with UCSF SonarQube	27s
Upload Coverage	12s
	20m 9s

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