build(deps): bump Meziantou.Analyzer from 1.0.720 to 1.0.721 (#849)

Bumps [Meziantou.Analyzer](https://github.com/meziantou/Meziantou.Analyzer) from 1.0.720 to 1.0.721.
- [Release notes](https://github.com/meziantou/Meziantou.Analyzer/releases)
- [Commits](https://github.com/meziantou/Meziantou.Analyzer/commits)

---
updated-dependencies:
- dependency-name: Meziantou.Analyzer
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

Directory.Build.props

@@ -48,7 +48,7 @@
 	<!-- Shared code analyzers used for all projects in the solution -->
 	<ItemGroup Label="Code Analyzers">
 		<PackageReference Include="AsyncFixer" Version="1.6.0" PrivateAssets="All" />
-		<PackageReference Include="Meziantou.Analyzer" Version="1.0.720" PrivateAssets="All" />
+		<PackageReference Include="Meziantou.Analyzer" Version="1.0.721" PrivateAssets="All" />
 		<PackageReference Include="SonarAnalyzer.CSharp" Version="8.44.0.52574" PrivateAssets="All" />
 	</ItemGroup>