Bump build.buf:buf from 1.61.0 to 1.62.1 (#393)

Bumps [build.buf:buf](https://github.com/bufbuild/buf) from 1.61.0 to
1.62.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/bufbuild/buf/releases">build.buf:buf's
releases</a>.</em></p>
<blockquote>
<h2>v1.62.1</h2>
<ul>
<li>Fix default behavior for <code>swift_prefix</code> to remain unset
when no override is provided in managed mode.</li>
</ul>
<h2>v1.62.0</h2>
<ul>
<li>Add <code>swift_prefix</code> to managed mode.</li>
<li>Add <code>textDocument/rename</code> and
<code>textDocument/prepareRename</code> support for <code>buf lsp
serve</code>.</li>
<li>Fix panic in LSP for empty option paths.</li>
<li>Fix support for multi-arch image manifests for <code>buf beta
registry plugin push</code>.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/bufbuild/buf/blob/main/CHANGELOG.md">build.buf:buf's
changelog</a>.</em></p>
<blockquote>
<h2>[v1.62.1] - 2025-12-29</h2>
<ul>
<li>Fix default behavior for <code>swift_prefix</code> to remain unset
when no override is provided in
managed mode.</li>
</ul>
<h2>[v1.62.0] - 2025-12-29</h2>
<ul>
<li>Add <code>swift_prefix</code> to managed mode.</li>
<li>Add <code>textDocument/rename</code> and
<code>textDocument/prepareRename</code> support for <code>buf lsp
serve</code>.</li>
<li>Fix panic in LSP for empty option paths.</li>
<li>Fix support for multi-arch image manifests for <code>buf beta
registry plugin push</code>.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/bufbuild/buf/commit/26896d06fa768297a46e309aa4c90a858e03c5e6"><code>26896d0</code></a>
Release v1.62.1 (<a
href="https://redirect.github.com/bufbuild/buf/issues/4246">#4246</a>)</li>
<li><a
href="https://github.com/bufbuild/buf/commit/efd9273f849770a82ee5df3b3a646cf885a53b2c"><code>efd9273</code></a>
Fix default behavior of <code>swift_prefix</code> to remain unset in
managed mode (<a
href="https://redirect.github.com/bufbuild/buf/issues/4245">#4245</a>)</li>
<li><a
href="https://github.com/bufbuild/buf/commit/c7c37dc28524e91c871069a4b7438f151e7c51c2"><code>c7c37dc</code></a>
Return to development (<a
href="https://redirect.github.com/bufbuild/buf/issues/4244">#4244</a>)</li>
<li><a
href="https://github.com/bufbuild/buf/commit/61fa40c6d33f88cb4de445ef7c2af63d5f53779d"><code>61fa40c</code></a>
Release v1.62.0 (<a
href="https://redirect.github.com/bufbuild/buf/issues/4243">#4243</a>)</li>
<li><a
href="https://github.com/bufbuild/buf/commit/a23620eba310fe4c407f362db465e94796bfc3e1"><code>a23620e</code></a>
Make upgrade (<a
href="https://redirect.github.com/bufbuild/buf/issues/4242">#4242</a>)</li>
<li><a
href="https://github.com/bufbuild/buf/commit/3da6f18d9c5015fbf8b58f1f5b77b2493f54b4bb"><code>3da6f18</code></a>
Reuse <code>source.Opener</code> and <code>ir.Session</code> to fix
executor memory leaks in LSP (#...</li>
<li><a
href="https://github.com/bufbuild/buf/commit/3a5f4668b3ccaa47c959086abf7e7ee032e68749"><code>3a5f466</code></a>
Fix LSP to ignore excluded workspace files (<a
href="https://redirect.github.com/bufbuild/buf/issues/4239">#4239</a>)</li>
<li><a
href="https://github.com/bufbuild/buf/commit/2ef6d9e692f74f65e38027dd35692545d7f0312d"><code>2ef6d9e</code></a>
Update docker image versions (<a
href="https://redirect.github.com/bufbuild/buf/issues/4241">#4241</a>)</li>
<li><a
href="https://github.com/bufbuild/buf/commit/5c8827172f2d78de6f9841135c6ff02db5a0f4cd"><code>5c88271</code></a>
Run make upgrade (<a
href="https://redirect.github.com/bufbuild/buf/issues/4240">#4240</a>)</li>
<li><a
href="https://github.com/bufbuild/buf/commit/a293ec60439f492c0ef0d46b79fb64e7bc3024dd"><code>a293ec6</code></a>
Add swift_prefix to managed mode (<a
href="https://redirect.github.com/bufbuild/buf/issues/4215">#4215</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/bufbuild/buf/compare/v1.61.0...v1.62.1">compare
view</a></li>
</ul>
</details>
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gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 assertj = "3.27.6"
-buf = "1.61.0"
+buf = "1.62.1"
 cel = "0.11.1"
 error-prone = "2.45.0"
 junit = "5.14.1"