MOBILE-3039 push: Force FCM version 17.5+

Author: crazyserver

config.xml

@@ -142,7 +142,7 @@
     <plugin name="nl.kingsquare.cordova.background-audio" spec="1.0.1" />
     <plugin name="phonegap-plugin-push" spec="https://github.com/moodlemobile/phonegap-plugin-push.git#moodle-v3">
         <variable name="ANDROID_SUPPORT_V13_VERSION" value="27.+" />
-        <variable name="FCM_VERSION" value="17.0.+" />
+        <variable name="FCM_VERSION" value="17.5.+" />
     </plugin>
     <edit-config file="AndroidManifest.xml" mode="merge" target="/manifest/application/activity[@android:name='MainActivity']">
         <activity android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|screenLayout|smallestScreenSize" android:debuggable="true" />