fix: Update hardcoded SDK version strings from 1.1.3 to 1.1.5 in source code

Author: Your Name

javascript/src/client.ts

@@ -135,6 +135,6 @@ export class AgentGatePay {
    * Get SDK version
    */
   static get version(): string {
-    return '1.1.3';
+    return '1.1.5';
   }
 }

python/agentgatepay_sdk/__init__.py

@@ -12,7 +12,7 @@
     MandateError,
 )
 
-__version__ = "1.1.3"
+__version__ = "1.1.5"
 __all__ = [
     "AgentGatePay",
     "AgentGatePayError",

python/agentgatepay_sdk/client.py

@@ -120,4 +120,4 @@ def health(self) -> dict:
     @staticmethod
     def version() -> str:
         """Get SDK version"""
-        return "1.1.3"
+        return "1.1.5"