Bump OboeTester to v2.7.8

Author: robertwu1

apps/OboeTester/app/build.gradle

@@ -6,8 +6,8 @@ android {
         applicationId = "com.mobileer.oboetester"
         minSdkVersion 23
         targetSdkVersion 34
-        versionCode 96
-        versionName "2.7.7"
+        versionCode 97
+        versionName "2.7.8"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         externalNativeBuild {
             cmake {