test(sqlite): fix test flakiness caused by failing to close sqlite3.Connection objects
#19657
| Job | Run time |
|---|---|
| 6m 49s | |
| 6m 40s | |
| 6m 56s | |
| 6m 44s | |
| 13m 27s | |
| 12m 3s | |
| 6m 33s | |
| 5m 52s | |
| 7m 28s | |
| 6m 54s | |
| 1h 19m 26s |