devel/py-qt5-qscintilla2: limit supported python versions

sip-build-3.10: Python v3.10 is not supported

Approved by:	portmgr blanket

devel/py-qt5-qscintilla2/Makefile

@@ -13,7 +13,7 @@ LIB_DEPENDS=	libqscintilla2_qt5.so:devel/qscintilla2-qt5
 DISTINFO_FILE=	${.CURDIR:H}/qscintilla2-qt5/distinfo
 DESTDIRNAME=	INSTALL_ROOT
 
-USES=		python:3.5+ pyqt:5 gl qt:5
+USES=		python:3.5-3.9 pyqt:5 gl qt:5
 USE_GL=		gl
 USE_PYQT=	core gui printsupport widgets sip_build qtbuilder
 USE_PYTHON=	concurrent flavors py3kplist