ci: Add PostgreSQL 14 and 15 to GitHub Actions matrix (#7081)

* ci: Add PostgreSQL 14 and 15 to GitHub Actions matrix

* ci: Remove older PostgreSQL versions from test matrix

Fix handling of unknown column types (#6540)

fix: remove `callback` from `callbacks` if `Remove()` called (#6916)

* fix: remove callback from callbacks if Remove() called

* reduce number of loops

* remove unnecessary blank line

Fix AutoMigrate for bool fields with default value

refactor: part 2 of distinguish between Unique and UniqueIndex (#6822)

fix: ignore .gen.go suffix in logger to get the real caller when usin…

…g gen #6697 (#6785)

add support for returning in sqlserver (#6585)

fix schema GetIdentityFieldValuesMap interface or ptr (#6417)

Co-authored-by: uptutu <[email protected]>

fix(clause): when the value of clause.Eq is an empty array, the SQL s…

…hould be IN (NULL) (#6503)

ci: fix mariadb mysqladmin (#6401)

Co-authored-by: Saeid Saeidee <[email protected]>