Python 3.15 support

### Is there an existing issue or pull request for this?

- [x] I have searched the existing issues and pull requests

### Feature description

Support python 3.15 version.

### Desired solution

It should be tested against python 3.15 release and use python 3.15 instead of python 3.14
Just search the entire codebase for "3.14" and either replace it with 3.15 or add 3.15 to it

### Alternatives considered

Wait longer before it is officially released. But it is easy enough to integrate and test it already as it is in beta2 cycle.

### Additional context

_No response_