fix: correct newrelic call for background process instrumentation. #2115

Job	Run time
Run E2E tests (mysql, mysql, 3306)	8m 50s
Build Registry (src, refs/pull/598/merge)	6m 16s
Run E2E tests (pg, postgres, 5432)	8m 44s
Build Registry (dest, master)	9m 39s
Build ILC (src, refs/pull/598/merge)	1m 47s
Build ILC (dest, master)	1m 39s
Test Registry (src, refs/pull/598/merge, sqlite3)	1m 37s
Test Registry (src, refs/pull/598/merge, mysql, mysql, 3306)	1m 34s
Test Registry (src, refs/pull/598/merge, pg, postgres, 5432)	1m 46s
Test Registry (dest, master, sqlite3)	1m 32s
Test Registry (dest, master, mysql, mysql, 3306)	1m 30s
Test Registry (dest, master, pg, postgres, 5432)	1m 32s
Push images to registry	5s
PR Coverage Report	1m 21s
Build documentation	0s
	47m 52s

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