fix: revert " update cache artifacts on every command run"

[felangel]

Description

Reverts #1958

Reverting this change because for customers patching or releasing using older flutter revisions, this change results in the cache only downloading artifacts for the latest stable engine revision instead of the engine revision being used to patch/release.

Also filed #1976 to prevent this type of regression in the future.

Type of Change

• ✨ New feature (non-breaking change which adds functionality)
• 🛠️ Bug fix (non-breaking change which fixes an issue)
• ❌ Breaking change (fix or feature that would cause existing functionality to change)
• 🧹 Code refactor
• ✅ Build configuration change
• 📝 Documentation
• 🗑️ Chore

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (65e0e56) to head (3856414).

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #1975   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          177       177           
  Lines         5562      5564    +2     
=========================================
+ Hits          5562      5564    +2     

Flag	Coverage Δ
shorebird_cli	100.00% <100.00%> (ø)

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