refactor: Migrate azblob to opendal based

[Xuanwo]

This PR includes the following changes:

• Implement Storage upon opendal::Operator so that all opendal services can be used as cache storage
• Migrate azure implement to opendal based.

Much azure tests have been removed, but opendal have all of them covered in OpenDAL's behavior test at Service Test Azblob.

[codecov-commenter]

Codecov Report

Base: 30.11% // Head: 29.79% // Decreases project coverage by -0.31% ⚠️

Coverage data is based on head (a4dc9d0) compared to base (4401cd9).
Patch coverage: 12.32% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1463      +/-   ##
==========================================
- Coverage   30.11%   29.79%   -0.32%     
==========================================
  Files          49       47       -2     
  Lines       17408    16974     -434     
  Branches     8295     8056     -239     
==========================================
- Hits         5242     5057     -185     
+ Misses       6553     6501      -52     
+ Partials     5613     5416     -197     

Impacted Files	Coverage Δ
src/cache/azure.rs	0.00% <0.00%> (-31.62%)	⬇️
src/cache/s3.rs	44.44% <0.00%> (+14.55%)	⬆️
src/lib.rs	8.87% <ø> (-0.41%)	⬇️
src/cache/cache.rs	34.54% <12.76%> (-3.12%)	⬇️
src/config.rs	36.56% <15.78%> (-0.84%)	⬇️
src/compiler/gcc.rs	54.60% <0.00%> (-0.98%)	⬇️
src/mock_command.rs	51.31% <0.00%> (-0.75%)	⬇️
src/compiler/c.rs	38.53% <0.00%> (-0.69%)	⬇️
src/util.rs	34.68% <0.00%> (-0.63%)	⬇️
src/compiler/args.rs	61.19% <0.00%> (-0.53%)	⬇️
... and 9 more

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[drahnr]

I like the kind of PRs that delete more code than it adds, thank you! I don't think we should have tests for the inner details of opendal, after all we are becoming a consumer of that and it's not a direct development concern of sccache.