Make release 13-9 SaaS first

Why is this change being made?

To make the release post "SaaS first" !73764 (comment 513432789)

This puts the SaaS badges ahead of Self Managed.

Review: https://pcalder-release-13-9-saas-first.about.gitlab-review.app/releases/2021/02/22/gitlab-13-9-released/index.html#key-features

Author Checklist

• Provided a concise title for the MR
• Added a description to this MR explaining the reasons for the proposed change, per say-why-not-just-what
• Assign this change to the correct DRI
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