Rollback of https://github.com/google/ExoPlayer/commit/ca5b094916633c3e49c18407518a19f9f66666d8

*** Original commit ***

Upgrade Robolectric version

This fixes the issue reported in
https://github.com/robolectric/robolectric/issues/5207.

***

PiperOrigin-RevId: 281747261

constants.gradle

@@ -20,7 +20,7 @@ project.ext {
     compileSdkVersion = 29
     dexmakerVersion = '2.21.0'
     mockitoVersion = '2.25.0'
-    robolectricVersion = '4.3.1'
+    robolectricVersion = '4.3'
     autoValueVersion = '1.6'
     autoServiceVersion = '1.0-rc4'
     checkerframeworkVersion = '2.5.0'