feat: fluent-bit log forwarding for cloudwatch

Description

Adds logs forwarding for Cloudwatch.

Even though the implementation mostly works, it is currently blocked by https://github.com/fluent/fluent-bit/issues/6616.

Supporting information

• https://tasks.opencraft.com/browse/SE-5881

Testing instructions

Steps to test the changes:

View the logs at:

• https://us-east-1.console.aws.amazon.com/cloudwatch/home?region=us-east-1#logsV2:log-groups/log-group/kg-cloudwatch-logs

To see tracking logs get updated, visit https://es1.kgdocluster.opencraft.hosting

Checklist

If any of the items below is not applicable, do not remove them, but put a check in it.

• All providers include the new feature/change
• All affected providers can provision new clusters
• Unit tests are added/updated
• Documentation is added/updated
• The TOOLS_CONTAINER_IMAGE_VERSION in ci_vars.yml is updated
• The grove-template repository is updated