Add 'Buildarch: noarch' to the help subpackage

(cherry picked from commit d6dcf09a2eee033a3a56d9acea90cf911a331ff3)

orc.spec

@@ -1,6 +1,6 @@
 Name:    orc
 Version: 0.4.32
-Release: 3
+Release: 4
 Summary: The Oil Run-time Compiler
 License: BSD
 URL:     http://cgit.freedesktop.org/gstreamer/orc/
@@ -22,6 +22,7 @@ subtraction, and many arithmetic operations.
 
 %package help
 Summary: Help documentation for Orc
+Buildarch: noarch
 Requires: %{name} = %{version}-%{release}
 
 %description help
@@ -83,6 +84,9 @@ The Orc compiler.
 %doc %{_datadir}/gtk-doc/html/orc/
 
 %changelog
+* Wed Aug 21 2024 Huanyu Li <lihuanyu@cqsoftware.com.cn> - 0.4.32-4
+- Add 'Buildarch: noarch' to the help subpackage
+
 * Thu Aug 01 2024 wangjiang <wangjiang37@h-partners.com> - 0.4.32-3
 - fix CVE-2024-40897