Align targetSdk to 34 in AndroidTestConventionPlugin.kt

Initial update was applied in #814

Author: SimonMarquis

build-logic/convention/src/main/kotlin/AndroidTestConventionPlugin.kt

@@ -31,10 +31,10 @@ class AndroidTestConventionPlugin : Plugin<Project> {
 
             extensions.configure<TestExtension> {
                 configureKotlinAndroid(this)
-                defaultConfig.targetSdk = 31
+                defaultConfig.targetSdk = 34
                 configureGradleManagedDevices(this)
             }
         }
     }
 
-}
+}