update libs

app/build.gradle

@@ -145,7 +145,7 @@ dependencies {
     implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutines_version"
 
     // For now I'm not using javalite, because I want JSON printing
-    implementation ('com.google.protobuf:protobuf-java:3.15.3')
+    implementation ('com.google.protobuf:protobuf-java:3.15.5')
 
     // For UART access
     // implementation 'com.google.android.things:androidthings:1.0'