Backport of #1101: Add PSAvoidAssignmentToAutomaticVariable to the default set of PSSA rules (#1102)

* Fix PipelineIndentation configuration issue (#1050)

* legacy/1.x: Update minimum PSSA version to 1.18.3 (#1052)

* Backport of #1101: Add PSAvoidAssignmentToAutomaticVariable to the default set of PSSA rules

Author: bergmeister

src/PowerShellEditorServices/Analysis/AnalysisService.cs

@@ -31,6 +31,7 @@ public class AnalysisService : IDisposable
         /// no settings file is specified.
         /// </summary>
         private static readonly string[] s_includedRules = {
+            "PSAvoidAssignmentToAutomaticVariable",
             "PSUseToExportFieldsInManifest",
             "PSMisleadingBacktick",
             "PSAvoidUsingCmdletAliases",