Add `does_not_end_with` to SQB

[k98kurz]

Is your feature request related to a problem? Please describe.

The SqlQueryBuilder has an ends_with method but not the inverse does_not_end_with.

Describe the solution you'd like

Add the does_not_end_with method to the SQB (and equivalent async class).

Describe alternatives you've considered

Not adding it, but I want it so I'mma add it.

Additional context

SQL syntax will be identical but with not like instead of like.

[k98kurz]

Done