build(deps): bump Microsoft.CodeAnalysis.NetAnalyzers in /samples

Bumps [Microsoft.CodeAnalysis.NetAnalyzers](https://github.com/dotnet/roslyn-analyzers) from 7.0.1 to 7.0.3.
- [Release notes](https://github.com/dotnet/roslyn-analyzers/releases)
- [Changelog](https://github.com/dotnet/roslyn-analyzers/blob/main/PostReleaseActivities.md)
- [Commits](https://github.com/dotnet/roslyn-analyzers/commits)

---
updated-dependencies:
- dependency-name: Microsoft.CodeAnalysis.NetAnalyzers
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

samples/Directory.build.props

@@ -6,7 +6,7 @@
   <ItemGroup>
     <PackageReference Include="stylecop.analyzers" Version="1.2.0-beta.507" PrivateAssets="all" />
     <PackageReference Include="Roslynator.Analyzers" Version="4.3.0" PrivateAssets="All" />
-    <PackageReference Include="Microsoft.CodeAnalysis.NetAnalyzers" Version="7.0.1" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.NetAnalyzers" Version="7.0.3" PrivateAssets="all" />
   </ItemGroup>
   <ItemGroup>
     <AdditionalFiles Include="$(MSBuildThisFileDirectory)..\src\stylecop.json" Link="stylecop.json" />