devel/py-jupyterlab: Update to 3.0.16

Changes:	https://github.com/jupyterlab/jupyterlab/blob/3.0.x/docs/source/getting_started/changelog.rst

devel/py-jupyterlab/Makefile

 # Created by: Po-Chuan Hsieh <sunpoet@FreeBSD.org>
 
 PORTNAME=	jupyterlab
-PORTVERSION=	3.0.15
-PORTREVISION=	1
+PORTVERSION=	3.0.16
 CATEGORIES=	devel python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}

devel/py-jupyterlab/distinfo

-TIMESTAMP = 1620928603
-SHA256 (jupyterlab-3.0.15.tar.gz) = 8e7a1537b39d27ff00666c8ec022e41ecba6669168dd6f8a145941d6b4ec4ca4
-SIZE (jupyterlab-3.0.15.tar.gz) = 10717033
+TIMESTAMP = 1621699713
+SHA256 (jupyterlab-3.0.16.tar.gz) = 7ad4fbe1f6d38255869410fd151a8b15692a663ca97c0a8146b3f5c40e275c23
+SIZE (jupyterlab-3.0.16.tar.gz) = 10722438