Bump MSTest.TestFramework from 3.6.3 to 3.6.4 (#2388)

Bumps [MSTest.TestFramework](https://github.com/microsoft/testfx) from 3.6.3 to 3.6.4.
- [Release notes](https://github.com/microsoft/testfx/releases)
- [Changelog](https://github.com/microsoft/testfx/blob/main/docs/Changelog.md)
- [Commits](microsoft/testfx@v3.6.3...v3.6.4)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/Bicep.Types.Az.UnitTests/Bicep.Types.Az.UnitTests.csproj

@@ -9,7 +9,7 @@
     <PackageReference Include="FluentAssertions" Version="6.12.2" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="MSTest.TestAdapter" Version="3.6.3" />
-    <PackageReference Include="MSTest.TestFramework" Version="3.6.3" />
+    <PackageReference Include="MSTest.TestFramework" Version="3.6.4" />
     <PackageReference Include="coverlet.collector" Version="6.0.2">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>

src/Bicep.Types.Az.UnitTests/packages.lock.json

@@ -49,9 +49,9 @@
       },
       "MSTest.TestFramework": {
         "type": "Direct",
-        "requested": "[3.6.3, )",
-        "resolved": "3.6.3",
-        "contentHash": "jockRcUoLJMeHzLqFcMnZBrWy7tS32JP7shlepDDJuf5A6HO2PwAefXzhvprcWNkfpEwmR0KihSO2HRXwNbTng=="
+        "requested": "[3.6.4, )",
+        "resolved": "3.6.4",
+        "contentHash": "3nV+2CJluKmiJpCSqQfXu5idCq35+vqFywjScyauTIz0Zk7KJw7Qpzv8gtwow0To7pxIlIvwkq9rbMB+V6eOow=="
       },
       "Nerdbank.GitVersioning": {
         "type": "Direct",