feat(unity-catalog): support credentials via storage options

[fvaleye]

Description

Add StorageConfig when building UnityCatalog to allow catalog credentials.

Related Issue(s)

• closes UnityCatalogBuilder cannot be initialized via StorageConfig. #3757

[codecov]

Codecov Report

❌ Patch coverage is 91.27517% with 13 lines in your changes missing coverage. Please review.
✅ Project coverage is 75.99%. Comparing base (446ba3c) to head (1ee2ee1).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/catalog-unity/src/lib.rs	91.27%	8 Missing and 5 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3769      +/-   ##
==========================================
+ Coverage   75.70%   75.99%   +0.29%     
==========================================
  Files         145      145              
  Lines       44731    44878     +147     
  Branches    44731    44878     +147     
==========================================
+ Hits        33862    34104     +242     
+ Misses       9197     9094     -103     
- Partials     1672     1680       +8     

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