Fixing precompile timeout handling

[csvance]

This fixes precompile timeout handling, the exception is now properly checked and an informative message shown.

Fixes #81

[codecov-commenter]

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Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 83.30%. Comparing base (7ff0517) to head (e1492f1).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/gRPCClient.jl	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #88      +/-   ##
==========================================
- Coverage   83.45%   83.30%   -0.15%     
==========================================
  Files           7        7              
  Lines         556      557       +1     
==========================================
  Hits          464      464              
- Misses         92       93       +1     

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