Update pdsc before release

Author: ZigaMahne

Keil.STM32F2xx_DFP.pdsc

@@ -13,13 +13,8 @@
   </licenseSets>
 
   <releases>
-    <release version="3.0.1-dev">
+    <release version="3.1.1-dev">
       Active development ...
-      Updated debug configuration files
-      Updated documentation references
-      Updated Templates:
-      - Added DWARF-5 debug information
-      - Added generated output files
     </release>
     <release version="2.11.0" date="2024-03-27">
       Updated STM32Cube FW to STM32Cube_FW_F2_V1.9.4 (HAL V1.2.8).