ci/deqp: force overwriting exiting files when compressing with zstd
This does not change the behavior in CI runs where the files are always
created from scratch, but it helps on local invocations when running the
command multiple times on the same rootfs.
It prevents build-deqp.sh to stop at the command line prompt for
questions like:
-----------------------------------------------------------------------
zstd: mustpass/egl-main.txt.zst already exists; overwrite (y/n) ? y
zstd: mustpass/gles2-khr-main.txt.zst already exists; overwrite (y/n) ? y => 5%
zstd: mustpass/gles2-main.txt.zst already exists; overwrite (y/n) ? y => 6%
-----------------------------------------------------------------------
...
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34468>
1 file changed
