Bump MSTest.Sdk from 3.6.4 to 3.7.0 (#1533)

Bumps [MSTest.Sdk](https://github.com/microsoft/testfx) from 3.6.4 to 3.7.0.
- [Release notes](https://github.com/microsoft/testfx/releases)
- [Changelog](https://github.com/microsoft/testfx/blob/main/docs/Changelog.md)
- [Commits](microsoft/testfx@v3.6.4...v3.7.0)

---
updated-dependencies:
- dependency-name: MSTest.Sdk
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

global.json

@@ -5,6 +5,6 @@
     "rollForward": "latestMajor"
   },
   "msbuild-sdks": {
-    "MSTest.Sdk": "3.6.4"
+    "MSTest.Sdk": "3.7.0"
   }
 }