devel/py-dask: Update to 2023.8.1

Changes:	https://github.com/dask/dask/blob/main/docs/source/changelog.rst
		https://docs.dask.org/en/latest/changelog.html

devel/py-dask/Makefile

 PORTNAME=	dask
-PORTVERSION=	2023.8.0
+PORTVERSION=	2023.8.1
 CATEGORIES=	devel python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}

devel/py-dask/distinfo

-TIMESTAMP = 1692211715
-SHA256 (dask-2023.8.0.tar.gz) = 6039b821e9c97cab265b2bba070a272e02e413c6d602887c82d389d41b67cc61
-SIZE (dask-2023.8.0.tar.gz) = 8529835
+TIMESTAMP = 1692640044
+SHA256 (dask-2023.8.1.tar.gz) = 5c4b402908938dc87506e0fc07fb0dfa329e59587adf34531cd300fe853b3bf8
+SIZE (dask-2023.8.1.tar.gz) = 8532379