Bump Graph core

Author: Ndiritu

gradle/dependencies.gradle

@@ -8,7 +8,7 @@ dependencies {
     implementation 'jakarta.annotation:jakarta.annotation-api:2.1.1'
 
     // Core Http library
-    api 'com.microsoft.graph:microsoft-graph-core:3.1.12'
+    api 'com.microsoft.graph:microsoft-graph-core:3.1.13'
 
     implementation 'com.microsoft.kiota:microsoft-kiota-authentication-azure:1.1.13'
     implementation 'com.microsoft.kiota:microsoft-kiota-http-okHttp:1.1.13'