Fixes typo in Caching envvar (#424) #426
Merged
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Live tests for #424
Envvar to set caching mode was previously CLOUPATHLIB_FILE_CACHE_MODE (missing D in CLOUDPATHLIB). This commit fixes this typo and introduces some code to help migrate projects to the new envvar. The current logic for migration warnings is:
Added deprecation version
Fully reset envvars after testing