Let MSYS2 non-release CI jobs retry up to 10 times

This is (hopefully) a temporary work-around for the intermittent
Python 3.10 symbol extractor failure under MSYS2, reported in
ticket: msys2/MINGW-packages#11864

.github/workflows/windows-meson-msys2.yml

@@ -130,7 +130,7 @@ jobs:
       - name: Build
         run: |
           set -xo pipefail
-          scripts/retry_command.sh 2 meson compile -C build |& tee build.log
+          scripts/retry_command.sh 10 meson compile -C build |& tee build.log
           ccache -s
           #
           # Reason for retry is due to intermittent Python symbol extractor failure