Bump Microsoft.NET.Test.Sdk from 17.14.1 to 18.0.0

---
updated-dependencies:
- dependency-name: Microsoft.NET.Test.Sdk
  dependency-version: 18.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-versions.props

@@ -28,7 +28,7 @@
     <ScalarAspNetCoreVersion>2.8.*</ScalarAspNetCoreVersion>
     <SwashbuckleVersion>9.*-*</SwashbuckleVersion>
     <SystemTextJsonVersion>9.0.*</SystemTextJsonVersion>
-    <TestSdkVersion>17.14.*</TestSdkVersion>
+    <TestSdkVersion>18.0.0</TestSdkVersion>
     <XunitVersion>2.9.*</XunitVersion>
     <XunitVisualStudioVersion>3.1.*</XunitVisualStudioVersion>
   </PropertyGroup>