Build(deps): Bump third_party/sby from d9a5845 to 62d1708 (#2596)

Bumps [third_party/sby](https://github.com/YosysHQ/sby) from `d9a5845`
to `62d1708`.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/YosysHQ/sby/commit/62d17081bf620c8571653e7845b137ec465109c7"><code>62d1708</code></a>
Merge pull request <a
href="https://redirect.github.com/YosysHQ/sby/issues/276">#276</a> from
YosysHQ/krys/test-furo-ys</li>
<li><a
href="https://github.com/YosysHQ/sby/commit/0fab912005d82bcd1d0d450118b06d57cd21d8d1"><code>0fab912</code></a>
Docs: Use sby role shortcut</li>
<li><a
href="https://github.com/YosysHQ/sby/commit/a3844d4a30539843d7f2b07fe742cde95f3b37da"><code>a3844d4</code></a>
Docs: Use sby lexer</li>
<li><a
href="https://github.com/YosysHQ/sby/commit/5426bee107614c302bda88abbf903c3fd5a149ad"><code>5426bee</code></a>
Use furo-ys</li>
<li>See full diff in <a
href="https://github.com/YosysHQ/sby/compare/d9a5845323f3cf1ce367b19dd0742e7be536c1a0...62d17081bf620c8571653e7845b137ec465109c7">compare
view</a></li>
</ul>
</details>
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</details>

Author: kamilrakoczy