WL#17048: Remove Python 3.9 support

Python 3.9 end of life is scheduled for Oct. 2025. See PEP 745
– Python 3.14 Release Schedule. With this worklog, MySQL
Connector/Python drops support for Python 3.9.

Change-Id: Ie2010128c8c98ba7b1bd9f164454d51af86e38e0

Author: Oscar Pacheco

CHANGES.txt

@@ -13,6 +13,7 @@ v9.5.0
 
 - WL#17049: Remove usage of SQL functions MD5() and SHA1()
 - WL#17088: MySQL Connector Python HeatWave GenAI and ML SDK
+- WL#17048: Remove Python 3.9 support
 
 v9.4.0
 ======