chore(deps): update dependency microsoft.net.test.sdk to v18 (#80)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

src/SqlInliner.Tests/SqlInliner.Tests.csproj

@@ -8,7 +8,7 @@
   <ItemGroup>
     <PackageReference Include="NUnit" Version="3.14.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.6.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
     <PackageReference Include="System.Formats.Asn1" Version="8.0.1" />
     <PackageReference Include="System.IO.Packaging" Version="8.0.1" />
   </ItemGroup>