Raise crash-test-debian timeout to 90 minutes

When running on the Kubernetes runner, this CI job is timing out.
Raise the limit to give the job enough time to run.

Signed-off-by: Camilla Conte <cconte@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230407145252.32955-2-cconte@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

.gitlab-ci.d/buildtest.yml

@@ -98,6 +98,7 @@ crash-test-debian:
   needs:
     - job: build-system-debian
       artifacts: true
+  timeout: 90m
   variables:
     IMAGE: debian-amd64
   script: