Fix out-of-bounds with function PQescapeInternal

When Who What
2024-04-04 17:33:42 Ranier Vilela (raniervilela) Closed in commitfest 2024-07 with status: Rejected
2024-04-02 21:13:43 Tom Lane (tgl) Closed in commitfest 2024-07 with status: Rejected
2024-04-02 21:13:34 Tom Lane (tgl) Added tgl as reviewer
2024-04-01 11:30:06 Ranier Vilela (raniervilela) Changed authors to Ranier Vilela (raniervilela)
2024-04-01 11:30:06 Ranier Vilela (raniervilela) Changed targetversion to 17
2024-04-01 11:29:51 Ranier Vilela (raniervilela) Attached mail thread CAEudQAokoJFsNoDwOwbuLzBKP67nMhkL0Qe_1WztEfK1JAKDCg@mail.gmail.com
2024-04-01 11:29:51 Ranier Vilela (raniervilela) Created patch record