Upgrade: [dependabot] - bump boto3 from 1.35.20 to 1.35.21 (#2748)

Bumps [boto3](https://github.com/boto/boto3) from 1.35.20 to 1.35.21.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/boto/boto3/commit/abf29a750bc5efe0018572338640c4bb3266f9b0"><code>abf29a7</code></a>
Merge branch 'release-1.35.21'</li>
<li><a
href="https://github.com/boto/boto3/commit/e5cee5771ed87e338bd80f96361cd8f25c964469"><code>e5cee57</code></a>
Bumping version to 1.35.21</li>
<li><a
href="https://github.com/boto/boto3/commit/16ae858afa2af84d6586f785d5d85f9a5e7a45b3"><code>16ae858</code></a>
Add changelog entries from botocore</li>
<li><a
href="https://github.com/boto/boto3/commit/38f89a47c8338345cf4a36b7f16dce8b79371926"><code>38f89a4</code></a>
Merge branch 'release-1.35.20' into develop</li>
<li>See full diff in <a
href="https://github.com/boto/boto3/compare/1.35.20...1.35.21">compare
view</a></li>
</ul>
</details>
<br />


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</details>

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

pyproject.toml

@@ -31,7 +31,7 @@ semver = "^3.0.2"
 gitpython = "^3.1.43"
 pytest = "^8.3.3"
 requests = "^2.32.3"
-boto3 = "^1.35.20"
+boto3 = "^1.35.21"
 argparse = "^1.4.0"
 pre-commit = "^3.5.0"