Backport of chore: update changelog to include bug fix into release/0.18.x

[hc-github-team-secure-boundary]

Backport

This PR is auto-generated from #5654 to be assessed for backporting due to the inclusion of the label backport/0.18.x.

🚨

Warning automatic cherry-pick of commits failed. If the first commit failed,
you will see a blank no-op commit below. If at least one commit succeeded, you
will see the cherry-picked commits up to, not including, the commit where
the merge conflict occurred.

The person who merged in the original PR is:
@ddebko
This person should manually cherry-pick the original PR into a new backport PR,
and close this one when the manual backport PR is merged in.

merge conflict error: POST https://api.github.com/repos/hashicorp/boundary/merges: 409 Merge conflict []

The below text is copied from the body of the original PR.

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Original PR had no description content.

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Overview of commits

• 47f0bb8

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