android/ci: raise error on script when not related to the tests

The cuttlefish-runner.sh script was failing before reaching the test
suite execution (which was not executing the complete test suite due to
the previous non-catched failures, and was erroneous passing) and we
were not catching that.
Add set -e so we can catch those.

Signed-off-by: Helen Koike <helen.koike@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21941>

.gitlab-ci/cuttlefish-runner.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-set -x
+set -xe
 
 export HOME=/cuttlefish
 export PATH=$PATH:/cuttlefish/bin
@@ -88,6 +88,7 @@ $ADB shell rm /vendor/lib64/egl/libGLESv2_emulation.so
 
 RESULTS=/data/results
 
+set +e
 $ADB shell "mkdir /data/results; cd /data; strace -o /data/results/out.strace -f -s 1000 ./deqp-runner \
     suite \
     --suite /data/deqp-$DEQP_SUITE.toml \
@@ -101,6 +102,7 @@ $ADB shell "mkdir /data/results; cd /data; strace -o /data/results/out.strace -f
     $DEQP_RUNNER_OPTIONS"
 
 EXIT_CODE=$?
+set -e
 
 $ADB pull $RESULTS results