Use single source of truth for version from pyproject.toml

The version is now retrieved from package metadata at runtime using
importlib.metadata. This reduces the chance of version inconsistencies
during releases.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: oschwald

HISTORY.rst

@@ -3,6 +3,13 @@
 History
 -------
 
+3.3.0
+++++++++++++++++++
+
+* The version is now retrieved from package metadata at runtime using
+  ``importlib.metadata``. This reduces the chance of version inconsistencies
+  during releases.
+
 3.2.0 (2025-11-20)
 ++++++++++++++++++
 

dev-bin/release.sh

@@ -41,7 +41,6 @@ if [ -n "$(git status --porcelain)" ]; then
     exit 1
 fi
 
-perl -pi -e "s/(?<=__version__ = \").+?(?=\")/$version/g" src/minfraud/version.py
 perl -pi -e "s/(?<=^version = \").+?(?=\")/$version/gsm" pyproject.toml
 
 echo $"Test results:"

src/minfraud/__init__.py

@@ -10,5 +10,3 @@
 )
 from .version import __version__
 from .webservice import AsyncClient, Client
-
-__author__ = "Gregory Oschwald"

src/minfraud/version.py

@@ -1,3 +1,5 @@
 """Internal module for version (to prevent cyclic imports)."""
 
-__version__ = "3.2.0"
+from importlib.metadata import version
+
+__version__ = version("minfraud")