refactor: use pyproject.toml as single source of truth for version

Author: shoumikchow

bbox_visualizer/__init__.py

@@ -1,6 +1,6 @@
 """bbox-visualizer - Different ways of visualizing objects given bounding box data."""
 
-from ._version import __version__
+from importlib.metadata import version
 from .core import (
     add_label,
     add_multiple_labels,
@@ -15,6 +15,8 @@
 )
 from .core._utils import suppress_warnings, warnings_suppressed
 
+__version__ = version("bbox_visualizer")
+
 __all__ = [
     "__version__",
     "add_T_label",