give PSES a chance to run what it needs to run

Author: TylerLeonhardt

test/PowerShellEditorServices.Test.E2E/LanguageServerProtocolMessageTests.cs

@@ -55,6 +55,9 @@ private string NewTestFile(string script, bool isPester = false)
                 }
             });
 
+            // Give PSES a chance to run what it needs to run.
+            Thread.Sleep(1000);
+
             return filePath;
         }