Ensure AWS tag is added to all edx service logs in Datadog

[robrap]

There are some edx service logs in Datadog that mysteriously missing the aws_account_name tag. (There could be other missing tags, but hopefully this is enough to resolve.) This happens for our regular edx services (e.g. edx-edxapp-lms, edx-nginx, etc.), but only happens in blips throughout the day as can be seen in the screenshot.

To see the problematic logs, see the following log search in Datadog for: service:edx-* -aws_account_name:* -service:edx-*frontend*.

• service:edx-* (searches for edx services)
• -service:edx-*frontend* (removes edx frontend services from search)
• -aws_account_name:* (searches for logs missing the aws_account_name tag)

[github-actions]

This is now https://2u-internal.atlassian.net/browse/GSRE-2049