bpo-44639: fix typo in sqlite.rst (transation => transaction) (GH-27145) (GH-27148)

To my understanding, this is supposed to say "transaction".

See the relevant source:

https://github.com/python/cpython/blob/a158b20019b50e3ece6e4743ec4e6ae8d818b690/Modules/_sqlite/connection.cGH-L1434-L1467
(cherry picked from commit 1ca27f264730abaaa48b3c5e7c6eafb45017b824)

Co-authored-by: Jack DeVries <58614260+jdevries3133@users.noreply.github.com>

Co-authored-by: Jack DeVries <58614260+jdevries3133@users.noreply.github.com>