Update value

Author: tejasd

firebase-sessions/test-app/src/main/AndroidManifest.xml

@@ -43,10 +43,10 @@
       android:process=":second"
       android:theme="@style/Theme.Widget_test_app.NoActionBar" />
 
-    <!-- Override value to 100.0 to always have a fireperf verbose session -->
+    <!-- Override value to 1.0 to always have a fireperf verbose session -->
     <meta-data
         android:name="sessions_sampling_percentage"
-        android:value="1.0" />
+        android:value="0.01" />
 
     <meta-data
       android:name="firebase_performance_logcat_enabled"