[WIP] Fix/exception handler

[raubitsj]

https://wandb.atlassian.net/browse/WB-NNNN https://wandb.atlassian.net/browse/CLI-NNNN https://github.com/wandb/client/issues/NNNN

Description

What does the PR do?

Testing

How was this PR tested?

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 98.86364% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 75.01%. Comparing base (be0da43) to head (dd93be6). Report is 2311 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1903      +/-   ##
==========================================
+ Coverage   74.96%   75.01%   +0.04%     
==========================================
  Files         233      235       +2     
  Lines       28920    29048     +128     
==========================================
+ Hits        21680    21789     +109     
- Misses       7240     7259      +19     

Files	Coverage Δ
tests/conftest.py	94.89% <100.00%> (-0.19%)	:arrow_down:
tests/utils/__init__.py	100.00% <100.00%> (ø)
tests/utils/inject_backend.py	100.00% <100.00%> (ø)
tests/wandb_init_test.py	100.00% <100.00%> (ø)
wandb/errors/__init__.py	100.00% <100.00%> (ø)
wandb/errors/error.py	94.73% <100.00%> (+2.42%)	:arrow_up:
wandb/proto/wandb_internal_pb2.py	100.00% <100.00%> (ø)
wandb/sdk/backend/backend.py	97.91% <100.00%> (+1.14%)	:arrow_up:
wandb/sdk/internal/handler.py	92.95% <100.00%> (+0.05%)	:arrow_up:
wandb/sdk/wandb_init.py	85.82% <100.00%> (+1.33%)	:arrow_up:
... and 2 more

... and 9 files with indirect coverage changes

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