fix: 更新rpm打包前脚本，添加对wiregasm.wasm文件的权限设置

pkg/rpm/SPECS/omc.spec

@@ -17,7 +17,7 @@ OMC is a management application for the 5GC core network.
 %prep
 rm -rf ${RPM_BUILD_ROOT} && mkdir -p ${RPM_BUILD_ROOT}
 cp -rf ${RPM_BUILD_DIR}/* ${RPM_BUILD_ROOT}/
-
+chmod 644 ${RPM_BUILD_ROOT}/usr/local/etc/omc/web/wiregasm/wiregasm.wasm
 
 # 安装前脚本    ========
 %pre