Bump MSTest.TestFramework from 2.2.10 to 3.10.2

---
updated-dependencies:
- dependency-name: MSTest.TestFramework
  dependency-version: 3.10.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

docs/csharp/language-reference/operators/snippets/shared/operators.csproj

@@ -11,7 +11,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="MSTest.TestFramework" Version="2.2.10" />
+    <PackageReference Include="MSTest.TestFramework" Version="3.10.2" />
   </ItemGroup>
 
 </Project>