Update com.nextcloud.client to 3.20.0 RC2

metadata/com.nextcloud.client.yml

@@ -1956,10 +1956,28 @@ Builds:
     scandelete:
       - app/src/androidTest/assets
 
+  - versionName: 3.20.0 RC2
+    versionCode: 30200052
+    commit: rc-3.20.0-02
+    sudo:
+      - apt-get update || apt-get update
+      - apt-get install -y openjdk-11-jdk-headless
+      - update-alternatives --auto java
+    gradle:
+      - generic
+    output: app/build/outputs/apk/generic/release/generic-release-*.apk
+    rm:
+      - user_manual
+    prebuild:
+      - mkdir -p $HOME/.gradle
+      - echo org.gradle.jvmargs=-Xmx9g -XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryError
+        > $HOME/.gradle/gradle.properties
+    scandelete:
+      - app/src/androidTest/assets
+
 MaintainerNotes: 'Latest 3 stable version will be kept, RC versions will be directly
     outdated by either a new RC or by a stable version: 3.3.0 RC1 -> 3.3.0 RC2 ->
-    3.3.0 (stable) Latest RC depends on com.github.zynkware:Document-Scanning-Android-SDK:1.0.1
-    -> jetified-Tiny-OpenCV-4.4.0-4-runtime.jar which contains libopencv_java4.so. '
+    3.3.0 (stable)'
 
 AutoUpdateMode: None
 UpdateCheckMode: None