Libsql disable checkpoint downgrade #1970
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SQLite can downgrade
wal_checkpointmode fromTRUNCATEtoPASSIVEif it will unable to take write lock during busy_wait period.This PR adds compile time option
LIBSQL_DISABLE_CHECKPOINT_DOWNGRADEwhich will disable this behavior and instead of mode downgrade fail-fast checkpoint procedure withSQLITE_BUSYerror.