Only use flags for retrieving env connections

[jeremybeard]

Description

This changes the retrieval of environment connections during astro dev start and astro dev restart to not attempt to use the context workspace when the --workspace-id or --deployment-id flags are not set. This makes the retrieval of connections more explicit, reducing unexpected behavior. With this change the commands run with the --workspace-id or --deployment-id flag set will fail if the connections cannot be retrieved, and will automatically authenticate so that tokens can be refreshed.

📋 Checklist

• Rebased from the main (or release if patching) branch (before testing)
• Ran make test before taking out of draft
• Ran make lint before taking out of draft
• Added/updated applicable tests
• Tested against Astro-API (if necessary).
• Tested against Houston-API and Astronomer (if necessary).
• Communicated to/tagged owners of respective clients potentially impacted by these changes.
• Updated any related documentation

[codecov]

Codecov Report

Attention: 6 lines in your changes are missing coverage. Please review.

Comparison is base (c6df2aa) 86.93% compared to head (4a776b0) 86.92%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1423      +/-   ##
==========================================
- Coverage   86.93%   86.92%   -0.01%     
==========================================
  Files         115      115              
  Lines       14045    14055      +10     
==========================================
+ Hits        12210    12218       +8     
- Misses       1094     1095       +1     
- Partials      741      742       +1     

Files	Coverage Δ
cmd/cloud/setup.go	57.39% <100.00%> (+0.75%)	⬆️
cloud/environment/environment.go	88.88% <81.81%> (ø)
cmd/airflow.go	87.64% <60.00%> (-0.65%)	⬇️

... and 1 file with indirect coverage changes

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