<pre style="white-space:pre-wrap;width:81ex">Bump better_errors from 2.8.3 to 2.9.1 (#15117)

Bumps [better_errors](https://github.com/BetterErrors/better_errors) from 2.8.3 to 2.9.1.
- [Release notes](https://github.com/BetterErrors/better_errors/releases)
- [Commits](https://github.com/BetterErrors/better_errors/compare/v2.8.3...v2.9.1)

Signed-off-by: dependabot[bot] &lt;[email protected]&gt;

Co-authored-by: dependabot[bot] &lt;49699333+dependabot[bot]@users.noreply.github.com&gt;</pre>
https://github.com/tootsuite/mastodon/commit/e9b4d97d889474b3baaaad2869cca34b767b9a0d