Update RingQt - extensions/ringqt/buildqt515_core.bat - Use Qt 5.15.2 instead of Qt 5.15.0
Update RingQt - extensions/ringqt/buildqt515_core.bat - Use Qt 5.15.2 instead of Qt 5.15.0

ring-lang/ring,ring-lang/ring,ring-lang/ring,ring-lang/ring,ring-lang/ring,ring-lang/ring,ring-lang/ring,ring-lang/ring