Refactor codebase to async/await - m365 spo commandset and m365 spo customaction  #5021

This issue is for the refactoring of the m365 spo commandset and m365 spo customaction commands, more specifically:

• m365 spo commandset add
• m365 spo commandset get
• m365 spo commandset list
• m365 spo commandset remove
• m365 spo commandset set
• m365 spo customaction add
• m365 spo customaction clear
• m365 spo customaction get
• m365 spo customaction list
• m365 spo customaction remove
• m365 spo customaction set