Fix failure to cleanup AWS Auto Scaling Group

Once the incept test is run for AWS Fleeting Plugin, it fails to delete the ASG created for the test.

This MR aims to fix this issue

To test this change we can compare the following job log:

• Failure to cleanup the ASG with the according error message

An error occurred (ValidationError) when calling the DeleteAutoScalingGroup operation: AutoScalingGroup name not found - AutoScalingGroup 'asg-7277-1700691815' not found

• New log from latest pipeline of this MR where there is no more error.

The changes were also applied to the GCP as it had the same issue 😅