Media: fix encrypted media

libraries/mediaupload/test/src/main/kotlin/io/element/android/libraries/mediaupload/test/FakeMediaPreProcessor.kt

@@ -32,10 +32,11 @@ class FakeMediaPreProcessor : MediaPreProcessor {
                 mimetype = "*/*",
                 size = 999L,
                 thumbnailInfo = null,
-                thumbnailUrl = null,
+                thumbnailSource = null,
             )
         )
     )
+
     override suspend fun process(uri: Uri, mediaType: MediaType, deleteOriginal: Boolean): Result<MediaUploadInfo> = result
 
     fun givenResult(value: Result<MediaUploadInfo>) {