cleanup(storage): use Status factory functions

[coryan]

Part of the work for #14107

This change is 

[codecov]

Codecov Report

Attention: Patch coverage is 84.29003% with 52 lines in your changes are missing coverage. Please review.

Project coverage is 93.25%. Comparing base (37f9141) to head (06d4cc2).

Files	Patch %	Lines
google/cloud/storage/client.cc	9.67%	28 Missing ⚠️
google/cloud/storage/parallel_upload.cc	86.44%	8 Missing ⚠️
google/cloud/storage/benchmarks/benchmark_utils.cc	66.66%	2 Missing ⚠️
.../cloud/storage/benchmarks/throughput_experiment.cc	0.00%	2 Missing ⚠️
...d/storage/internal/async/accumulate_read_object.cc	71.42%	2 Missing ⚠️
...e/cloud/storage/internal/bucket_metadata_parser.cc	66.66%	2 Missing ⚠️
google/cloud/storage/internal/object_requests.cc	81.81%	2 Missing ⚠️
google/cloud/storage/internal/rest/stub.cc	0.00%	2 Missing ⚠️
...cloud/storage/internal/retry_object_read_source.cc	66.66%	2 Missing ⚠️
.../benchmarks/aggregate_upload_throughput_options.cc	90.90%	1 Missing ⚠️
... and 1 more

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #14143   +/-   ##
=======================================
  Coverage   93.25%   93.25%           
=======================================
  Files        2205     2205           
  Lines      189168   189232   +64     
=======================================
+ Hits       176406   176468   +62     
- Misses      12762    12764    +2     

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[dbolduc]

(just pointing out that) there is no longer a msg

[coryan]

Yes, I decided to just pass the error without adding decoration to it.