Bump clang-format from 21.1.2 to 21.1.6 (onnx#7503)

Bumps [clang-format](https://github.com/ssciwr/clang-format-wheel) from
21.1.2 to 21.1.6.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/ssciwr/clang-format-wheel/commit/b43cdff14e76160d57e29eee774209b1b8834e8d"><code>b43cdff</code></a>
v21.1.6</li>
<li><a
href="https://github.com/ssciwr/clang-format-wheel/commit/303a117a34ac9402d792b42bcadcd78f933839c2"><code>303a117</code></a>
Merge pull request <a
href="https://redirect.github.com/ssciwr/clang-format-wheel/issues/148">#148</a>
from ssciwr/dependabot/github_actions/actions/downloa...</li>
<li><a
href="https://github.com/ssciwr/clang-format-wheel/commit/be0a06705c4918d2c1e3bd0be141efac7ba532a6"><code>be0a067</code></a>
Merge pull request <a
href="https://redirect.github.com/ssciwr/clang-format-wheel/issues/147">#147</a>
from ssciwr/dependabot/github_actions/actions/upload-...</li>
<li><a
href="https://github.com/ssciwr/clang-format-wheel/commit/3a3e2ec19292c87228a2817e96916c93df1129be"><code>3a3e2ec</code></a>
Merge pull request <a
href="https://redirect.github.com/ssciwr/clang-format-wheel/issues/145">#145</a>
from ssciwr/dependabot/github_actions/pypa/cibuildwhe...</li>
<li><a
href="https://github.com/ssciwr/clang-format-wheel/commit/ce02410fd8ad0509d05fe46393c52a1e2cdc8998"><code>ce02410</code></a>
Merge pull request <a
href="https://redirect.github.com/ssciwr/clang-format-wheel/issues/144">#144</a>
from ssciwr/dependabot/github_actions/actions/setup-p...</li>
<li><a
href="https://github.com/ssciwr/clang-format-wheel/commit/4472108f24294d56030e624b5be18a7671acce6e"><code>4472108</code></a>
Bump to v21.1.5</li>
<li><a
href="https://github.com/ssciwr/clang-format-wheel/commit/54d0d519f74f586a7d81f6aeae2c70c2ab382747"><code>54d0d51</code></a>
Bump actions/download-artifact from 5 to 6</li>
<li><a
href="https://github.com/ssciwr/clang-format-wheel/commit/b0ee4c5c260cbf7ffd49badd17d4a6fd58c26863"><code>b0ee4c5</code></a>
Bump actions/upload-artifact from 4 to 5</li>
<li><a
href="https://github.com/ssciwr/clang-format-wheel/commit/8590a1dea371c3428975d83b709e8feaf65afc60"><code>8590a1d</code></a>
Bump pypa/cibuildwheel from 3.1 to 3.2</li>
<li><a
href="https://github.com/ssciwr/clang-format-wheel/commit/43f48785100df1e3e5b5ed2d36eb4804fad339af"><code>43f4878</code></a>
Bump actions/setup-python from 5 to 6</li>
<li>See full diff in <a
href="https://github.com/ssciwr/clang-format-wheel/compare/v21.1.2...v21.1.6">compare
view</a></li>
</ul>
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requirements-lintrunner.txt

@@ -6,6 +6,6 @@ ruff==0.14.6
 mypy==1.18.2
 types-protobuf==6.30.2.20250822
 # CLANG-FORMAT
-clang-format==21.1.2
+clang-format==21.1.6
 # EDITORCONFIG-CHECKER
 editorconfig-checker==3.4.1