Fix issue due to optional dependency shapely and bump to v0.5.3

[keurfonluu]

• Fixed: module not found error when importing pvgridder if shapely is not installed (which is optional and only installed for full installation).

Reminders:

• Run invoke ruff to make sure the code follows the style guide,
• Add tests for new features or tests that would have caught the bug that you're fixing,
• Write detailed docstrings for all functions, classes and/or methods,
• If adding new functionality, unit test it and add it to the documentation.