Better linkage to automation options for manual Astro options

[jwitz]

Issue Type

Missing content for an existing feature

Links to Affected Docs

https://docs.astronomer.io/astro/manage-env-vars https://docs.astronomer.io/astro/environment-variables

The Issue or Context

We should make it more clear that there are automation solutions related to environment variable management

Fix or Proposed Change

No response

Additional Notes

No response

Required Reviewers

No response