ci/deqp-runner: be less verbose in the loop printing the deqp builds info

The bash stuff printed in the middle makes it unnecessarily hard to read
the useful part of the output.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30866>

.gitlab-ci/deqp-runner.sh

@@ -170,12 +170,14 @@ fi
 uncollapsed_section_switch deqp "deqp: deqp-runner"
 
 # Print the detailed version with the list of backports and local patches
+{ set +x; } 2>/dev/null
 for api in vk gl gles; do
   deqp_version_log=/deqp/version-$api
   if [ -r "$deqp_version_log" ]; then
     cat "$deqp_version_log"
   fi
 done
+set -x
 
 set +e
 if [ -z "$DEQP_SUITE" ]; then