Revert JDBC driver bump

JRuby support will be added back once oracle-enhanced adapter 8.1 is
released. Revert to ojdbc11.jar from JDBC 233 for now.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: yahonda

.github/workflows/test.yml

@@ -68,7 +68,7 @@ jobs:
         echo "/usr/lib/oracle/23/client64/bin" >> $GITHUB_PATH
     - name: Install JDBC Driver
       run: |
-        wget -q https://download.oracle.com/otn-pub/otn_software/jdbc/23261/ojdbc17.jar -O ./lib/ojdbc17.jar
+        wget -q https://download.oracle.com/otn-pub/otn_software/jdbc/233/ojdbc11.jar -O ./lib/ojdbc11.jar
     - name: Create database user
       run: |
         ./ci/setup_accounts.sh

.github/workflows/test_11g.yml

@@ -68,7 +68,7 @@ jobs:
         echo "/opt/oracle/instantclient_21_15" >> $GITHUB_PATH
     - name: Install JDBC Driver
       run: |
-        wget -q https://download.oracle.com/otn-pub/otn_software/jdbc/23261/ojdbc11.jar -O ./lib/ojdbc11.jar
+        wget -q https://download.oracle.com/otn-pub/otn_software/jdbc/233/ojdbc11.jar -O ./lib/ojdbc11.jar
     - name: Create database user
       run: |
         ./ci/setup_accounts.sh