(deps): Bump coverlet.msbuild from 6.0.2 to 6.0.3 in /src

Bumps [coverlet.msbuild](https://github.com/coverlet-coverage/coverlet) from 6.0.2 to 6.0.3.
- [Release notes](https://github.com/coverlet-coverage/coverlet/releases)
- [Commits](coverlet-coverage/coverlet@v6.0.2...v6.0.3)

---
updated-dependencies:
- dependency-name: coverlet.msbuild
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/Directory.Packages.props

@@ -40,6 +40,6 @@
     <PackageVersion Include="System.Security.Cryptography.Xml" Version="9.0.0" />
     <PackageVersion Include="System.Text.Json" Version="9.0.0" />
     <PackageVersion Include="YamlDotNet" Version="16.2.1" />
-    <PackageVersion Include="coverlet.msbuild" Version="6.0.2" />
+    <PackageVersion Include="coverlet.msbuild" Version="6.0.3" />
   </ItemGroup>
 </Project>