Fix publishing

[JeremieGince]

Description

This pull request makes a minor but important update to standardize the project name casing, ensuring consistency between the package metadata and its usage in the codebase.

• Project naming consistency:
  • Changed the project name in pyproject.toml from TorchPfaffian to torchpfaffian to use lowercase, which is the Python packaging convention.
  • Updated the fallback package name in src/torch_pfaffian/__init__.py from "TorchPfaffian" to "torchpfaffian" to match the new project name and avoid potential issues with version retrieval.

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Checklist

Please complete the following checklist when submitting a PR. The PR will not be reviewed until all items are checked.

• All new features include a unit test.
  Make sure that the tests passed and the coverage is
  sufficient by running
  uv run pytest --session-timeout=600.
• All new functions and code are clearly documented.
• The code passes all pre-commit hooks.
  You can do this by running uvx pre-commit run --all-files.
• The code is type-checked using Mypy.
  You can do this by running uv run mypy src tests.

[github-actions]

☂️ Python Coverage

current status: ✅

Overall Coverage

Lines	Covered	Coverage	Threshold	Status
238	238	100%	98%	🟢

New Files

No new covered files...

Modified Files

File	Coverage	Status
src/torch_pfaffian/init.py	100%	🟢
TOTAL	100%	🟢

updated for commit: 58685f4 by action🐍