release 4.2.0

[AllyW]

4.2.0
++++++

• Fix issue caused by or operation in isinstance (Fix issue caused by or op in isinstance #475)
• Fix issue caused by properties of not any type (fix: if properties then not any type #477)
• Support merge when renaming a command (Support Merge when renaming a command #474)
• Add auto-gen aaz cmds documentation (add auto-gen cmds documentation #478)
• typespec: update tsp compiler to 0.67.0 (Update tsp compiler to 0.67.0 #468)
• typespec: fix clientRequestIdName in header param and add uuid format parsing (Ignore clientRequestIdName in header param and add uuid format parsing #467)
• typespec: add support for any type of cmd schema (add support for any type of cmd schema in typespec-aaz #469)
• typespec: adjust ref class name to camel case (Adjust ref class name to camel case #472)