Seamless active directory domain join not working with Ubuntu

I am trying to join an EC2 instance to active directory through the AWS console. When trying to join the domain, it will error with this message:
```
/var/lib/amazon/ssm/i-05a2f74fc04941b0e/document/orchestration/23e2b956-6d96-4031-a55e-fb7c240d9d34/2023-11-29T21-35-29.248Z/awsdomainJoin/aws_domainjoin.sh: 737: [: 22.04: unexpected operator
/var/lib/amazon/ssm/i-05a2f74fc04941b0e/document/orchestration/23e2b956-6d96-4031-a55e-fb7c240d9d34/2023-11-29T21-35-29.248Z/awsdomainJoin/aws_domainjoin.sh: 740: [: UBUNTU: unexpected operator
```
Which seems to be cause by one of the bootstrap scripts. Since the script does a comparison to check if it's an Amazon Linux AMI, I tried joining an Amazon Linux EC2 instance to the domain and it worked.

SSM Agent Version: 3.2.1377.0
OS: Ubuntu 22.04

Start with the aws_domainjoin.sh script referenced at lines 737 and 740, and inspect the comparisons that fail on Ubuntu 22.04. Reproduce the domain-join flow for an Ubuntu 22.04 EC2 instance through the AWS console; done means the join completes without the unexpected-operator errors.

Written by the indexing model from the issue text.