feat: postgres array type detection

[mastir]

🔍 What was changed

detect internal array types as string[], integer[] and float[] insteed of ARRAY

🤔 Why?

There is no way to detect actual column type for arrays. In ORM any of array columns treated as unknown type with string typecast, but with custom typecast this columns can be detected and used properly

[roxblnfk]

Hi. I've updated the thread so the CI tests are passing. But for any code change we need additional tests.

[mastir]

Thank you @roxblnfk, I`ve added new test case and few more type detections to cover all of the postgres basic types