Update LibreTube to 0.6.1 (20)

metadata/com.github.libretube.yml

@@ -160,7 +160,19 @@ Builds:
       - yes
     prebuild: sed -i -e '/splits/,+8d' build.gradle
 
+  - versionName: 0.6.1
+    versionCode: 20
+    commit: 89abaa305aa7926f449356b7d528f55dc9d8fd20
+    subdir: app
+    sudo:
+      - apt-get update
+      - apt-get install -y openjdk-11-jdk-headless
+      - update-alternatives --auto java
+    gradle:
+      - yes
+    prebuild: sed -i -e '/splits/,+8d' build.gradle
+
 AutoUpdateMode: Version v%v
 UpdateCheckMode: Tags .*[0-9]$
-CurrentVersion: 0.6.0
-CurrentVersionCode: 19
+CurrentVersion: 0.6.1
+CurrentVersionCode: 20