Implement 'rig proj lock --update-package`

[gaborcsardi]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 57.14286% with 129 lines in your changes missing coverage. Please review.
✅ Project coverage is 63.97%. Comparing base (a98a736) to head (1c982e7).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/proj.rs	5.50%	103 Missing ⚠️
src/script_meta.rs	0.00%	22 Missing ⚠️
src/scrun.rs	0.00%	3 Missing ⚠️
src/pkg/install.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #418      +/-   ##
==========================================
- Coverage   64.02%   63.97%   -0.05%     
==========================================
  Files          71       71              
  Lines       35356    35647     +291     
==========================================
+ Hits        22635    22804     +169     
- Misses      12721    12843     +122     

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