fix(schema): handle driver convertible slices

[zacharyarnaise]

• Do only one thing
• Non breaking API changes
• Tested

go-gorm/playground#859
Closes #7842

What did this pull request do?

This PR fixes Statement.BuildCondition to treat a slice that database/sql converts to a single driver value as one primary key instead of expanding it into an IN list.
Types that are genuinely a list (e.g. []string) keeps the IN (...) semantic.

Go 1.27 stdlib introduced uuid.UUID. Using it as an inline PK condition currently expands it and gives this:

SELECT * FROM "books" WHERE "books"."id" IN ($1,$2,...,$16) ORDER BY "books"."id" LIMIT 1

With this PR, it gives:

SELECT * FROM "books" WHERE "books"."id" = $1

User Case Description

Being able to use Go 1.27 uuid.UUID without having to wrap it in a type that implements driver.Valuer and sql.Scanner.
uuid.UUID implements neither but database/sql treats it as a special case, so values convert and scan on their own.
See:

• https://cs.opensource.google/go/go/+/refs/tags/go1.27.0:src/database/sql/driver/types.go;drc=2fb2b98da3d7d529e11a94b79372c0309aa05e21;l=262
• https://cs.opensource.google/go/go/+/refs/tags/go1.27.0:src/database/sql/convert.go;drc=4a38094e42de833f859fba85d1de7f6a32204abe;l=307