ci: update to pre-built Qt 5.9.9 universal binaries for macOS packages

.gitlab/ci/download_qt.cmake

@@ -50,8 +50,8 @@ if (qt_platform STREQUAL "windows_x86")
 elseif (qt_platform STREQUAL "mac_x64")
   if ("$ENV{CMAKE_CONFIGURATION}" MATCHES "package")
     list(APPEND qt_files
-      "qt-5.6.2-macosx10.7-x86_64.tar.xz")
-    set(qt_subdir "qt-5.6.2-macosx10.7-x86_64")
+      "qt-5.9.9-macosx10.10-x86_64-arm64.tar.xz")
+    set(qt_subdir "qt-5.9.9-macosx10.10-x86_64-arm64")
   else ()
     set(qt_build_stamp "202009071110")
     set(qt_file_name_prefix "${qt_version}-0-${qt_build_stamp}")

.gitlab/ci/download_qt_hashes.cmake

@@ -10,4 +10,4 @@ set("5.15.1-0-202009071110qtwinextras-Windows-Windows_10-MSVC2015-Windows-Window
 
 set("5.15.1-0-202009071110qtbase-MacOS-MacOS_10_13-Clang-MacOS-MacOS_10_13-X86_64.7z_hash" df2813ce7c6cb4287abd7956cd1cb9d08312e4ac1208b6cb57af4df11b8ebba1)
 
-set("qt-5.6.2-macosx10.7-x86_64.tar.xz_hash" 2b60373ea60037ce356d4c9f5a8c1df9854127a2c55118252e1a2f5a5f4e0010)
+set("qt-5.9.9-macosx10.10-x86_64-arm64.tar.xz_hash" aa6229bc6bd01a44d18b07023417698fdf4de7a02b14e971b473d80956a57a1c)