[camera]: Bump junit from 4.12 to 4.13.2 in /packages/camera/camera_android/example/android/app (#6016)

diff --git a/packages/camera/camera_android/example/android/app/build.gradle b/packages/camera/camera_android/example/android/app/build.gradle
index 476d653..5d6af58 100644
--- a/packages/camera/camera_android/example/android/app/build.gradle
+++ b/packages/camera/camera_android/example/android/app/build.gradle
@@ -57,7 +57,7 @@
 }
 
 dependencies {
-    testImplementation 'junit:junit:4.12'
+    testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test:runner:1.2.0'
     androidTestImplementation 'androidx.test:rules:1.2.0'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'