refactor: rename __about__.py to __version__.py and update references

Author: zodiacfireworks

src/edit_python_pe/__about__.py src/edit_python_pe/__version__.pysrc/edit_python_pe/__about__.py renamed to src/edit_python_pe/__version__.py

@@ -21,7 +21,7 @@ src = "pyproject.toml"
 search = 'tags/v{current_version}.tar.gz'
 
 [[file]]
-src = "src/edit_python_pe/__about__.py"
+src = "src/edit_python_pe/__version__.py"
 search = '__version__ = "{current_version}"'
 
 [[before_commit]]