fix: semantic release version updating pattern

[Bjarten]

Description

This PR fixes the version updating in __init__.py by making the version pattern more explicit in semantic-release configuration.

Issue

While pyproject.toml version is being updated correctly during release, the version in __init__.py remains unchanged. This is due to semantic-release needing a more explicit pattern to find and replace the version string.

Changes

Updated in pyproject.toml:

[tool.semantic_release]
# Old
# version_variable = ["early_stopping_pytorch/__init__.py:__version__"]

# New - explicit pattern
version_variable = ["early_stopping_pytorch/__init__.py:__version__ = \"{version}\""]