Add latest DECAY.DEC file from LHCb

[eduardo-rodrigues]

Note: this is a trivial update with no changes to data, only aliases added. It won't require a minor version update to flag significant changes.

Taken from the "Sim10" branch of the LHCb repository.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.68%. Comparing base (6a9415f) to head (dc7b73b).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #605   +/-   ##
=======================================
  Coverage   96.68%   96.68%           
=======================================
  Files           5        5           
  Lines         996      996           
=======================================
  Hits          963      963           
  Misses         33       33           

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