Skip test_e2e_rbs_collection on Windows

Author: mame

test/cli_test.rb

@@ -88,6 +88,10 @@ def foo: (String) -> String
     end
 
     def test_e2e_rbs_collection
+      # The "rbs collection install" command attempts to create a symlink,
+      # which requires elevated privileges on Windows
+      omit if RUBY_PLATFORM =~ /mswin|mingw/
+
       exp = <<~END
         # TypeProf #{ TypeProf::VERSION }