graphics/py-rasterio: Update to 1.2.9

Changes:	https://github.com/mapbox/rasterio/blob/master/CHANGES.txt

graphics/py-rasterio/Makefile

 # Created by: Po-Chuan Hsieh <sunpoet@FreeBSD.org>
 
 PORTNAME=	rasterio
-PORTVERSION=	1.2.8
+PORTVERSION=	1.2.9
 CATEGORIES=	graphics python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}

graphics/py-rasterio/distinfo

-TIMESTAMP = 1632037184
-SHA256 (rasterio-1.2.8.tar.gz) = 8196b7a71fea3c1573dd48d9ab0e78955e1d26e81848cce318c4930bd96782fe
-SIZE (rasterio-1.2.8.tar.gz) = 2249388
+TIMESTAMP = 1634111790
+SHA256 (rasterio-1.2.9.tar.gz) = 012a4964d8db365be4fae0af9cbeba00e683e5904d5031e8ba42ccb6040cc887
+SIZE (rasterio-1.2.9.tar.gz) = 2250631