add google_auth example #73

Job	Run time
list-examples	5s
check-export (basic_crud)	1m 17s
check-export (chatroom)	1m 14s
check-export (clock)	1m 16s
check-export (counter)	1m 20s
check-export (crm)	1m 22s
check-export (dalle)	1m 7s
check-export (ecommerce)	1m 35s
check-export (fragments)	1m 5s
check-export (github-stats)	1m 8s
check-export (google_auth)	1m 28s
check-export (gpt)	1m 34s
check-export (local_auth)	1m 16s
check-export (lorem-stream)	1m 6s
check-export (nba)	2m 28s
check-export (qr-scanner)	1m 8s
check-export (quiz)	1m 11s
check-export (random-number-range)	1m 0s
check-export (snakegame)	1m 3s
check-export (tailwind)	1m 13s
check-export (todo)	1m 15s
check-export (translator)	1m 3s
check-export (traversal)	1m 22s
check-export (twitter)	1m 4s
check-export (upload)	1m 21s
	31m 1s

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