chore: version bump

[katrinan029]

bumping edx-enterprise to 4.20.13 related PR: https://github.com/openedx/edx-enterprise/pull/2159 related JIRA: https://2u-internal.atlassian.net/browse/ENT-9040

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[edx-pipeline-bot]

2U Release Notice: This PR has been deployed to the edX staging environment in preparation for a release to production.

[edx-pipeline-bot]

2U Release Notice: This PR has been deployed to the edX production environment.