Update pandas_gbq/__init__.py

Author: chalmerlowe

pandas_gbq/__init__.py

@@ -13,8 +13,8 @@
 sys_major, sys_minor, sys_micro = _versions_helpers.extract_runtime_version()
 if sys_major == 3 and sys_minor < 9:
     warnings.warn(
-        "pandas-gbq will stop supporting Python versions older than 3.9 "
-        "in a future release. Your Python version is "
+        "pandas-gbq no longer supports Python versions older than 3.9. "
+        "Your Python version is "
         f"{sys_major}.{sys_minor}.{sys_micro}. Please update "
         "to Python 3.9 or newer to ensure ongoing support. For more details, "
         "see: https://cloud.google.com/python/docs/supported-python-versions",