testing/openimageio: rebuild against openexr 2.5.1

disable on aarch64

testing/openimageio/APKBUILD

@@ -2,11 +2,11 @@
 # Maintainer: Mark Riedesel <mark@klowner.com>
 pkgname=openimageio
 pkgver=1.8.15
-pkgrel=8
+pkgrel=9
 pkgdesc="Image I/O library supporting a multitude of image formats"
 options="!check" # 100 out of 120 tests fail
 url="https://sites.google.com/site/openimageio/"
-arch="all !armv7"
+arch="all !armv7 !aarch64"  # build errors on aarch64 with openexr>=2.5.1
 license="BSD-3-Clause"
 # NOTE: OpenColorIO and OpenImageIO are cross dependent. If an ABI incompatible
 # update is done in one, the other also needs to be rebuilt.