Add As-Of Argument To Generate Hub Baseline Function

[O957]

This PR:

• Adds an optional argument as_of to the function generate_hub_baseline in the file R/generate_hub_baseline.R, which is passed to forecasttools::hub_target_data_as_of() for greater flexibility in working with automated and failed hub baseline updates.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 9.63%. Comparing base (b637363) to head (e8ba38d).

Files with missing lines	Patch %	Lines
R/generate_hub_baselines.R	0.00%	1 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##            main     #68   +/-   ##
=====================================
  Coverage   9.63%   9.63%           
=====================================
  Files          9       9           
  Lines        664     664           
=====================================
  Hits          64      64           
  Misses       600     600           

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[dylanhmorris]

Thanks, @O957!