str
Required. Cron schedule (https://en.wikipedia.org/wiki/Cron)
for running scans periodically. To explicitly set a timezone
to the cron tab, apply a prefix in the cron tab:
"CRON_TZ=${IANA_TIME_ZONE}" or "TZ=${IANA_TIME_ZONE}". The
${IANA_TIME_ZONE} may only be a valid string from IANA time
zone database. For example, "CRON_TZ=America/New_York 1 \*
\* \* \*", or "TZ=America/New_York 1 \* \* \* \*". This
field is required for Schedule scans.