Release Agent Version 1.300039.0b612

[sethAmazon]

Description of the issue

Release latest version of agent to container insights

Description of changes

Change version in templates to 1.300039.0b612

License

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

Tests

docker pull public.ecr.aws/cloudwatch-agent/cloudwatch-agent:1.300039.0b612

Requirements

Before committing the code, please verify the following:

• If this commit includes changes to existing sample configurations, you acknowledge that you have confirmed this will not impact existing customer behavior.
• If not necessary, consider creating a new sample configuration for this change.