Update ExoPlayer to 2.18.1

app/build.gradle

@@ -102,7 +102,7 @@ ext {
     androidxWorkVersion = '2.7.1'
 
     icepickVersion = '3.2.0'
-    exoPlayerVersion = '2.18.0'
+    exoPlayerVersion = '2.18.1'
     googleAutoServiceVersion = '1.0.1'
     groupieVersion = '2.10.1'
     markwonVersion = '4.6.2'

app/src/main/java/org/schabi/newpipe/player/datasource/YoutubeHttpDataSource.java

@@ -1,5 +1,5 @@
 /*
- * Based on ExoPlayer's DefaultHttpDataSource, version 2.18.0.
+ * Based on ExoPlayer's DefaultHttpDataSource, version 2.18.1.
  *
  * Original source code copyright (C) 2016 The Android Open Source Project, licensed under the
  * Apache License, Version 2.0.