fix(registry): fix openid identifier match (case-insensitive) #1965

Job	Run time
Build Registry (src, refs/pull/551/merge)	19m 45s
Build ILC (src, refs/pull/551/merge)	9m 39s
Build Registry (dest, master)	22s
Run E2E tests (mysql, mysql, 3306)	12m 14s
Build ILC (dest, master)	1m 55s
Run E2E tests (pg, postgres, 5432)	12m 29s
Test Registry (src, refs/pull/551/merge, sqlite3)	44s
Test Registry (src, refs/pull/551/merge, mysql, mysql, 3306)	42s
Test Registry (src, refs/pull/551/merge, pg, postgres, 5432)	33s
Test Registry (dest, master, sqlite3)	2m 20s
Test Registry (dest, master, mysql, mysql, 3306)	1m 51s
Test Registry (dest, master, pg, postgres, 5432)	2m 25s
Push images to registry	0s
PR Coverage Report	0s
Build documentation	0s
	1h 4m 59s

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