Bump flatted from 3.4.1 to 3.4.2 (#2155)

Part of OPS-4107

Bumps [flatted](https://github.com/WebReflection/flatted) from 3.4.1 to
3.4.2.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/WebReflection/flatted/commit/3bf09091c3562e17a0647bc06710dd6097079cf7"><code>3bf0909</code></a>
3.4.2</li>
<li><a
href="https://github.com/WebReflection/flatted/commit/885ddcc33cf9657caf38c57c7be45ae1c5272802"><code>885ddcc</code></a>
fix CWE-1321</li>
<li><a
href="https://github.com/WebReflection/flatted/commit/0bdba705d130f00892b1b8fcc80cf4cdea0631e3"><code>0bdba70</code></a>
added flatted-view to the benchmark</li>
<li>See full diff in <a
href="https://github.com/WebReflection/flatted/compare/v3.4.1...v3.4.2">compare
view</a></li>
</ul>
</details>
<br />

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Marcelo Gonçalves <marcelo@openops.com>

Author: dependabot[bot]