Use stub lock instead of fixed version

[adalessa]

Something I didn't realize before was that I fixed the stub version which lead to a test failure due being updated.

I found that there is the subs.lock in the project, so I updated to link it directly to it to not have to update manually.

Thanks.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.57%. Comparing base (53273b9) to head (479b075).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #104   +/-   ##
=======================================
  Coverage   86.57%   86.57%           
=======================================
  Files         171      171           
  Lines      108531   108545   +14     
=======================================
+ Hits        93956    93969   +13     
- Misses      14575    14576    +1     

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