lang/gcc9-devel: Update to the 20210722 snapshot of GCC 9.4.1

This brings one back port each for the x86 and powerpc (nee rs6000)
back ends, the RTL optimizers and the Fortran front end.

lang/gcc9-devel/Makefile

 # Created by: Gerald Pfeifer <gerald@FreeBSD.org>
 
 PORTNAME=	gcc
-PORTVERSION=	9.4.1.s20210715
+PORTVERSION=	9.4.1.s20210722
 CATEGORIES=	lang
 MASTER_SITES=	GCC/snapshots/${DIST_VERSION}
 PKGNAMESUFFIX=	${SUFFIX}-devel

lang/gcc9-devel/distinfo

-TIMESTAMP = 1626439832
-SHA256 (gcc-9-20210715.tar.xz) = 116f7a64582ba32dd638a4eaef4613521564f7690f6f3c0ae17eb2fbf4e2520e
-SIZE (gcc-9-20210715.tar.xz) = 67689176
+TIMESTAMP = 1627124652
+SHA256 (gcc-9-20210722.tar.xz) = df51f772f32117cbaa45355962e6a2fb1f41ef3f509d1fd397ba98c824f0eec9
+SIZE (gcc-9-20210722.tar.xz) = 67683576