feat: refresh access token

[erikgraa]

Summary

After an access token expires, the first cmdlet to run afterwards will fail because the old access token is still being used.

By adding createHeader to checkVcfToken if a new access token has been requested and received, the cmdlet that first invokes checkVcfToken post-expiry will also work.

Example - pre-fix

Pretend that it's more than an hour since Request-VCFToken was run and that the access token is now expired.

Get-VCFCluster

Error Message:
{
  "errorCode": "Unauthorized", 
  "message": "Authorization Header is missing or not in correct format" 
}

# Re-running this or any other cmdlet will work
# At this point the cmdlet works because createHeader is run at the start of the cmdlet with the fresh access token from $global:accessToken

Get-VCFCluster

Type

• Bugfix
• Enhancement or Feature
• Code Style or Formatting
• Documentation
• Refactoring
• Chore
• Other
  Please describe:

Breaking Changes?

• Yes, there are breaking changes.
• No, there are no breaking changes.

Test and Documentation

N/A

Issue References

N/A

Additional Information

N/A