Utils: Renaming files across devices

[jasonpaulos]

Summary

This PR contains a bugfix for renaming files across devices.

Test Plan

Unit tests added

[codecov]

Codecov Report

Attention: Patch coverage is 60.00000% with 14 lines in your changes are missing coverage. Please review.

Project coverage is 56.03%. Comparing base (dfd95ff) to head (eab29c0).

Files	Patch %	Lines
util/io.go	63.63%	7 Missing and 5 partials ⚠️
config/localTemplate.go	0.00%	0 Missing and 1 partial ⚠️
logging/cyclicWriter.go	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5977      +/-   ##
==========================================
+ Coverage   56.00%   56.03%   +0.03%     
==========================================
  Files         481      481              
  Lines       67646    67679      +33     
==========================================
+ Hits        37883    37924      +41     
+ Misses      27197    27188       -9     
- Partials     2566     2567       +1     

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