update version to 5.6.3

Author: tibbi

Diff for: app/build.gradle

@@ -15,8 +15,8 @@ android {
         applicationId "com.simplemobiletools.voicerecorder"
         minSdkVersion 21
         targetSdkVersion 30
-        versionCode 16
-        versionName "5.6.2"
+        versionCode 17
+        versionName "5.6.3"
         setProperty("archivesBaseName", "voice-recorder")
         vectorDrawables.useSupportLibrary = true
     }