fix: Add check for None in providers provisioning form env var

[skynetigor]

Closes #2897

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 43.40%. Comparing base (6adf5bc) to head (79a78c6).
Report is 11 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2896      +/-   ##
==========================================
- Coverage   43.63%   43.40%   -0.24%     
==========================================
  Files         162      164       +2     
  Lines       15789    16067     +278     
==========================================
+ Hits         6890     6974      +84     
- Misses       8899     9093     +194     

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[talboren]

lgtm