[Gudahtt]

Explanation

Fix two minor auto-fixable lint errors.

References

These errors were introduced recently as part of #10185

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed
• I've introduced breaking changes in this PR and have prepared draft pull requests for clients and consumer packages to resolve them

---

Note

Low Risk
JSDoc formatting and eslint suppression cleanup only; no logic or security-sensitive changes.

Overview
Resolves two auto-fixable jsdoc/tag-lines violations in @metamask/utils by inserting a blank line between the JSDoc description and the first tag in uint8ArrayToMnemonic (mnemonic.ts) and in the DeferredPromise type block (promise.ts).

Because those files no longer need suppressions, the PR removes their jsdoc/tag-lines entries from eslint-suppressions.json. No runtime or API behavior changes.

^{Reviewed by Cursor Bugbot for commit c84573c. Bugbot is set up for automated code reviews on this repo. Configure here.}