test elements_audiotestsrc.test_layout occasionally times out

CI Log: https://gitlab.freedesktop.org/alatiera/gst-ci/-/jobs/77553

Output

check.gst-plugins-base.elements_audiotestsrc.test_layout: Failed 'Application returned 1'
       You can reproduce with: GST_PLUGIN_PATH_1_0='/builds/alatiera/gst-ci/gst-build/build:/usr/local/lib64/gstreamer-1.0' CK_DEFAULT_TIMEOUT='20' GST_REGISTRY='/builds/alatiera/gst-ci/gst-build/build/subprojects/gst-plugins-base/tests/check/elements_audiotestsrc.registry' GST_STATE_IGNORE_ELEMENTS='cdio cdparanoiasrc libvisual_ alsasrc alsasink' GST_TAG_LICENSE_TRANSLATIONS_DICT='/builds/alatiera/gst-ci/gst-build/subprojects/gst-plugins-base/gst-libs/gst/tag/license-translations.dict' GST_PLUGIN_LOADING_WHITELIST='gstreamer:gst-plugins-base@/builds/alatiera/gst-ci/gst-build/build' GST_PLUGIN_SYSTEM_PATH_1_0='' GST_CHECKS='test_layout' /builds/alatiera/gst-ci/gst-build/build/subprojects/gst-plugins-base/tests/check/elements_audiotestsrc

Dumping log files on failure

Dumping contents of /builds/alatiera/gst-ci/validate-output/logs/check/gst-plugins-base/elements_audiotestsrc/test_layout

=================
Test name: check.gst-plugins-base.elements_audiotestsrc.test_layout
Command: '/builds/alatiera/gst-ci/gst-build/build/subprojects/gst-plugins-base/tests/check/elements_audiotestsrc'
=================


(gst-plugin-scanner:4538): GStreamer-WARNING **: 14:33:26.157: Failed to load plugin '/builds/alatiera/gst-ci/gst-build/build/subprojects/pygobject/gi/_gi.cpython-37m-x86_64-linux-gnu.so': /builds/alatiera/gst-ci/gst-build/build/subprojects/pygobject/gi/_gi.cpython-37m-x86_64-linux-gnu.so: undefined symbol: PyExc_NotImplementedError

(gst-plugin-scanner:4538): GStreamer-WARNING **: 14:33:26.158: Failed to load plugin '/builds/alatiera/gst-ci/gst-build/build/subprojects/pygobject/gi/_gi_cairo.cpython-37m-x86_64-linux-gnu.so': /builds/alatiera/gst-ci/gst-build/build/subprojects/pygobject/gi/_gi_cairo.cpython-37m-x86_64-linux-gnu.so: undefined symbol: PyExc_ValueError
Running suite(s): audiotestsrc
0%: Checks: 1, Failures: 0, Errors: 1
../subprojects/gst-plugins-base/tests/check/elements/audiotestsrc.c:275:E:general:test_layout:0: (after this point) Test timeout expired
Check suite audiotestsrc ran in 22.170s (tests failed: 1)