Bump Microsoft.Data.SqlClient in /DigitalLearningSolutions.Data.Tests

Bumps [Microsoft.Data.SqlClient](https://github.com/dotnet/sqlclient) from 5.1.2 to 5.1.3.
- [Release notes](https://github.com/dotnet/sqlclient/releases)
- [Changelog](https://github.com/dotnet/SqlClient/blob/main/CHANGELOG.md)
- [Commits](dotnet/SqlClient@v5.1.2...v5.1.3)

---
updated-dependencies:
- dependency-name: Microsoft.Data.SqlClient
  dependency-type: direct:production
...

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

Author: dependabot[bot]

DigitalLearningSolutions.Data.Tests/DigitalLearningSolutions.Data.Tests.csproj

@@ -18,7 +18,7 @@
     <PackageReference Include="FluentMigrator" Version="5.0.0" />
     <PackageReference Include="FluentMigrator.Runner" Version="5.0.0" />
     <PackageReference Include="FluentMigrator.Runner.SqlServer" Version="5.0.0" />
-    <PackageReference Include="Microsoft.Data.SqlClient" Version="5.1.2" />
+    <PackageReference Include="Microsoft.Data.SqlClient" Version="5.1.3" />
     <PackageReference Include="NBuilder" Version="6.1.0" />
     <PackageReference Include="nunit" Version="3.14.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />