finance/py-yfinance: Update to 0.2.28

Changes:	https://github.com/ranaroussi/yfinance/releases

finance/py-yfinance/Makefile

 PORTNAME=	yfinance
-PORTVERSION=	0.2.26
+PORTVERSION=	0.2.28
 CATEGORIES=	finance python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}

finance/py-yfinance/distinfo

-TIMESTAMP = 1691070144
-SHA256 (yfinance-0.2.26.tar.gz) = a3ca2218cc99ebf345c5cfe43f69e6d1a0d360cb3cd6e0cd8f5ff80f81ee069d
-SIZE (yfinance-0.2.26.tar.gz) = 60661
+TIMESTAMP = 1692211787
+SHA256 (yfinance-0.2.28.tar.gz) = be89cd2a4d55c0a2a6227c32915b355bde59f85c569dca9123320322445901ff
+SIZE (yfinance-0.2.28.tar.gz) = 63007