Handle bigint and boolean casts in mysql json unwrapping (#25427)

* Handle bigint and boolean casts properly

- Add JSON -> SerializedJSON to `database-type->base-type`

* adds tests json bigint and boolean types for mysql

* Fix most of the tests

- still need to figure out :type/BigInteger vs :type/Integer

* fiddling with tests

* handle json booleans via default mechanism

* fix tests

* remove not(not(...)) from test

* bonk the test

- also fixes ddl.execute-with-timeout-test thrown? regex

* remove inline def

* try to get logs off ci

* don't test json on mariadb -- that never worked

* cleanup tests

* revert change to driver/database-supports? :mysql :nested-field-columns

* respond to code review comments