Replace MSTest Assert.ThrowsException with Assert.ThrowsExactly for MSTest v4 support

[echoix]

Is your feature request related to a problem? Please describe. MSTest v4 removed the deprecated Assert.ThrowsException. In v3, Assert.ThrowsException had an autofix to replace to Assert.ThrowsExactly, but it is not possible now that it is invalid code.

Describe the solution you'd like The template changed

Additional context Add any other context or screenshots about the feature request here.