FileUploadWorkerIT: ensure to reset fileuploader testing property after test

Signed-off-by: Álvaro Brey <alvaro.brey@nextcloud.com>

app/src/androidTest/java/com/owncloud/android/files/services/FileUploadWorkerIT.kt

@@ -22,11 +22,17 @@
 
 package com.owncloud.android.files.services
 
+import org.junit.After
 import org.junit.Before
 
 class FileUploadWorkerIT : FileUploaderIT() {
     @Before
-    fun enableWorker() {
+    fun forceUploadWorker() {
         FileUploader.setForceNewUploadWorker(true)
     }
+
+    @After
+    fun resetForceUploadWorker() {
+        FileUploader.setForceNewUploadWorker(false)
+    }
 }