upgrade libwebrtc to m89

.travis.yml

@@ -11,7 +11,7 @@ android:
     - '.+'
 before_script:
     - mkdir libs
-    - wget -O libs/libwebrtc-m87.aar https://gultsch.de/files/libwebrtc-m87.aar
+    - wget -O libs/libwebrtc-m89.aar https://gultsch.de/files/libwebrtc-m89.aar
 script:
     - ./gradlew assembleQuicksyFreeCompatDebug
     - ./gradlew assembleQuicksyFreeSystemDebug

build.gradle

@@ -76,7 +76,7 @@ dependencies {
     implementation "com.squareup.retrofit2:converter-gson:2.9.0"
     implementation 'com.google.guava:guava:30.1-android'
     quicksyImplementation 'io.michaelrocks:libphonenumber-android:8.12.18'
-    implementation fileTree(include: ['libwebrtc-m87.aar'], dir: 'libs')
+    implementation fileTree(include: ['libwebrtc-m89.aar'], dir: 'libs')
 }
 
 ext {