chore(deps): bump joserfc from 1.6.5 to 1.6.7 in /elt-common (#375)

Bumps [joserfc](https://github.com/authlib/joserfc) from 1.6.5 to 1.6.7.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/authlib/joserfc/releases">joserfc's
releases</a>.</em></p>
<blockquote>
<h2>1.6.7</h2>
<h3>   🐞 Bug Fixes</h3>
<ul>
<li><strong>jws</strong>: Validate payload size for b64=false  -  by <a
href="https://github.com/lepture"><code>@​lepture</code></a> <a
href="https://github.com/authlib/joserfc/commit/4d4ea2e"><!-- raw HTML
omitted -->(4d4ea)<!-- raw HTML omitted --></a></li>
<li><strong>typing</strong>: Accept any Collection for algorithms, not
just list  -  by <a
href="https://github.com/jonathangreen"><code>@​jonathangreen</code></a>
<a href="https://github.com/authlib/joserfc/commit/102a7a7"><!-- raw
HTML omitted -->(102a7)<!-- raw HTML omitted --></a></li>
<li><strong>typing</strong>: Use cast for type hints  -  by <a
href="https://github.com/lepture"><code>@​lepture</code></a> <a
href="https://github.com/authlib/joserfc/commit/75d9f95"><!-- raw HTML
omitted -->(75d9f)<!-- raw HTML omitted --></a></li>
</ul>
<h5>    <a
href="https://github.com/authlib/joserfc/compare/1.6.5...1.6.7">View
changes on GitHub</a></h5>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/authlib/joserfc/blob/main/docs/changelog.rst">joserfc's
changelog</a>.</em></p>
<blockquote>
<h2>1.6.7</h2>
<p><strong>Released on May 23, 2026</strong></p>
<ul>
<li>Update for type hints.</li>
</ul>
<h2>1.6.6</h2>
<p><strong>Released on May 18, 2026</strong></p>
<ul>
<li><strong>JWS</strong>: validate payload size when
<code>b64=false</code>.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/authlib/joserfc/commit/1e5b94da589c695f54abd9f1a0ad822dcffe0305"><code>1e5b94d</code></a>
chore: release 1.6.7</li>
<li><a
href="https://github.com/authlib/joserfc/commit/75d9f95815f522ccb50515fb36efbcc6601b2e34"><code>75d9f95</code></a>
fix(typing): use cast for type hints</li>
<li><a
href="https://github.com/authlib/joserfc/commit/6d240377ce8ddfb15793822d9d82cf66e66a9980"><code>6d24037</code></a>
Merge pull request <a
href="https://redirect.github.com/authlib/joserfc/issues/98">#98</a>
from jonathangreen/algorithms-accept-collection</li>
<li><a
href="https://github.com/authlib/joserfc/commit/102a7a7610eb50cd53cd46d917146b7af295613f"><code>102a7a7</code></a>
fix(typing): accept any Collection for algorithms, not just list</li>
<li><a
href="https://github.com/authlib/joserfc/commit/8b869e8754b5022c3a2a9e1071fe15f65d3749c6"><code>8b869e8</code></a>
chore: release 1.6.6</li>
<li><a
href="https://github.com/authlib/joserfc/commit/00d599bfc1282cf887bb6a8bc82598dc10532fa5"><code>00d599b</code></a>
chore: update actions</li>
<li><a
href="https://github.com/authlib/joserfc/commit/9186561fc40de112e3b3f01934b11d7ca54da142"><code>9186561</code></a>
Merge pull request <a
href="https://redirect.github.com/authlib/joserfc/issues/97">#97</a>
from authlib/fix-b64</li>
<li><a
href="https://github.com/authlib/joserfc/commit/4d4ea2e787ed36a2190158d86d8470e3acbb349b"><code>4d4ea2e</code></a>
fix(jws): validate payload size for b64=false</li>
<li><a
href="https://github.com/authlib/joserfc/commit/b6554cca2f0ae4f246411aa569b2980381eb35a3"><code>b6554cc</code></a>
Merge pull request <a
href="https://redirect.github.com/authlib/joserfc/issues/96">#96</a>
from sebasxsala/fix-p512-fixture</li>
<li><a
href="https://github.com/authlib/joserfc/commit/b89eadff61ef9d8cf4302d18987f27dc1b281647"><code>b89eadf</code></a>
test: normalize P-521 private key fixture</li>
<li>See full diff in <a
href="https://github.com/authlib/joserfc/compare/1.6.5...1.6.7">compare
view</a></li>
</ul>
</details>
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