chore(deps): update actions/cache digest to 6849a64

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/cache	action	digest	3624ceb -> 6849a64

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78%. Comparing base (34f686f) to head (9cf0346).
Report is 3 commits behind head on master.

Additional details and impacted files

@@          Coverage Diff           @@
##           master   #836    +/-   ##
======================================
+ Coverage      59%    78%   +18%     
======================================
  Files          30     30            
  Lines        3365   3365            
======================================
+ Hits         2015   2634   +619     
+ Misses       1350    731   -619     

Flag	Coverage Δ
examples	59% <ø> (ø)
tests	75% <ø> (?)

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