Update version to 0.19.7 (952)

app/build.gradle

@@ -13,8 +13,8 @@ android {
         resValue "string", "app_name", "NewPipe"
         minSdkVersion 19
         targetSdkVersion 29
-        versionCode 951
-        versionName "0.19.6"
+        versionCode 952
+        versionName "0.19.7"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables.useSupportLibrary = true