Unbound variable when executing cleanup.sh

[fguimond]

Describe the bug
When calling cleanup.sh the following error is logged.
/etc/terraform/cleanup.sh: line 6: SUMOLOGIC_BASE_URL: unbound variable"

Logs Logs which can be helpful in investigating the issue.

Command used to install/upgrade Collection Direct command which you used to install/upgrade collection.

Configuration Configuration used for Collection e.g. user-values.yaml for helm.

To Reproduce Steps to reproduce the behavior.

Expected behavior A clear and concise description of what you expected to happen.

If the environment variable is not necessary we should just set it to an empty string like this.

Otherwise we need to output a valid error message.

Environment (please complete the following information):

• Collection version (e.g. helm ls -n sumologic): 4.4.0
• Kubernetes version (e.g. kubectl version):
• Cloud provider:
• Others:

Anything else do we need to know Add any other context about the problem here, e.g. issue happens only occasionally.