Bump Microsoft.NET.Test.Sdk from 17.8.0 to 18.3.0

---
updated-dependencies:
- dependency-name: Microsoft.NET.Test.Sdk
  dependency-version: 18.3.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -23,7 +23,7 @@
     <PackageVersion Include="FsUnit" Version="5.6.0" />
     <PackageVersion Include="FSharp.Data" Version="6.3.0" />
     <PackageVersion Include="NUnit3TestAdapter" Version="4.5.0" />
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
     <PackageVersion Include="Ionide.KeepAChangelog.Tasks" Version="0.1.8" />
     <PackageVersion Include="G-Research.FSharp.Analyzers" Version="0.21.0" />
     <PackageVersion Include="Ionide.Analyzers" Version="0.14.11" />