databases/sqlite3: revert upgrade to 3.31.0

Firefox relied on internals. They changed, which leads to segfaults.

[1] https://bugzilla.mozilla.org/show_bug.cgi?id=1607902
[2] https://hg.mozilla.org/try/rev/8d7104bac33729b4da67954b07fb08371df39bd8

PR: 243602
Reported by: Michael Butler <imb@protected-networks.net>, David Wolfskill <david@catwhisker.org>