Upgrade: [dependabot] - bump @middy/http-header-normalizer from 6.1.5 to 6.1.6 (#1729)

Bumps
[@middy/http-header-normalizer](https://github.com/middyjs/middy/tree/HEAD/packages/http-header-normalizer)
from 6.1.5 to 6.1.6.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/middyjs/middy/releases"><code>@​middy/http-header-normalizer</code>'s
releases</a>.</em></p>
<blockquote>
<h2>6.1.6</h2>
<h2>What's Changed</h2>
<ul>
<li>fix: allow charset in multipart/formdata content-type by <a
href="https://github.com/BobLuursema"><code>@​BobLuursema</code></a> in
<a
href="https://redirect.github.com/middyjs/middy/pull/1287">middyjs/middy#1287</a></li>
<li>fix: Typo error.casue -&gt; error.cause <a
href="https://github.com/ehmicky"><code>@​ehmicky</code></a> <a
href="https://github.com/middyjs/middy/tree/HEAD/packages/http-header-normalizer/issues/1286">#1286</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a
href="https://github.com/BobLuursema"><code>@​BobLuursema</code></a>
made their first contribution in <a
href="https://redirect.github.com/middyjs/middy/pull/1287">middyjs/middy#1287</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/middyjs/middy/compare/6.1.5...6.1.6">https://github.com/middyjs/middy/compare/6.1.5...6.1.6</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/middyjs/middy/commit/0ff41761efce567ea7c6a09e029a5c63fd9eda7e"><code>0ff4176</code></a>
chore: version bump</li>
<li><a
href="https://github.com/middyjs/middy/commit/30940c442e0bb68f6b7d9490fc08119baa295c34"><code>30940c4</code></a>
ci: await for fuzz test to finish</li>
<li>See full diff in <a
href="https://github.com/middyjs/middy/commits/6.1.6/packages/http-header-normalizer">compare
view</a></li>
</ul>
</details>
<br />


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score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=@middy/http-header-normalizer&package-manager=npm_and_yarn&previous-version=6.1.5&new-version=6.1.6)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

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</details>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -19,7 +19,7 @@
     "@aws-lambda-powertools/parameters": "^2.16.0",
     "@aws-sdk/client-secrets-manager": "^3.758.0",
     "@middy/core": "^6.1.5",
-    "@middy/http-header-normalizer": "^6.1.5",
+    "@middy/http-header-normalizer": "^6.1.6",
     "@middy/input-output-logger": "^6.1.5",
     "@nhs/fhir-middy-error-handler": "^2.1.26",
     "@NHSDigital/eps-spine-client": "^2.1.28",