Upgrade OkHttp to 3.12.11.

PiperOrigin-RevId: 310114401

RELEASENOTES.md

@@ -179,6 +179,7 @@
     used for AV1 playback using the extension.
 *   IMA extension: Upgrade to IMA SDK version 3.18.1, and migrate to new
     preloading APIs ([#6429](https://github.com/google/ExoPlayer/issues/6429)).
+*   OkHttp extension: Upgrade OkHttp dependency to 3.12.11.
 
 ### 2.11.4 (2020-04-08)
 

extensions/okhttp/build.gradle

@@ -42,7 +42,7 @@ dependencies {
     // https://cashapp.github.io/2019-02-05/okhttp-3-13-requires-android-5
     // Since OkHttp is distributed as a jar rather than an aar, Gradle won't
     // stop us from making this mistake!
-    api 'com.squareup.okhttp3:okhttp:3.12.8'
+    api 'com.squareup.okhttp3:okhttp:3.12.11'
 }
 
 ext {