Fix kotlinx-serialization version mismatch in AuthFlowTester

Force-pinned versions 1.6.3 (Kotlin 1.9.x era) were incompatible with
the Kotlin 2.3.20 compiler plugin and the declared 1.11.0 runtime dependency.
Updated forced resolution to 1.11.0 to match.

Author: wmathurin

native/NativeSampleApps/AuthFlowTester/build.gradle.kts

@@ -96,10 +96,10 @@ android { // TODO: This cannot be resolved until newDSL=true
 
 configurations.all {
     resolutionStrategy {
-        force("org.jetbrains.kotlinx:kotlinx-serialization-core:1.6.3")
-        force("org.jetbrains.kotlinx:kotlinx-serialization-core-jvm:1.6.3")
-        force("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.3")
-        force("org.jetbrains.kotlinx:kotlinx-serialization-json-jvm:1.6.3")
+        force("org.jetbrains.kotlinx:kotlinx-serialization-core:1.11.0")
+        force("org.jetbrains.kotlinx:kotlinx-serialization-core-jvm:1.11.0")
+        force("org.jetbrains.kotlinx:kotlinx-serialization-json:1.11.0")
+        force("org.jetbrains.kotlinx:kotlinx-serialization-json-jvm:1.11.0")
         force("androidx.test:runner:1.7.0")
         force("androidx.test:rules:1.6.1")
         force("androidx.test.espresso:espresso-core:3.7.0")