Fix encryption without key in status call

[ofalvai]

Fixes the issue discovered in #61 by @gee-jay-bee

[codecov]

Codecov Report

Merging #68 (0bc4773) into main (c9456c6) will increase coverage by 0.51%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #68      +/-   ##
==========================================
+ Coverage   97.47%   97.98%   +0.51%     
==========================================
  Files           7        7              
  Lines         595      597       +2     
==========================================
+ Hits          580      585       +5     
+ Misses         15       12       -3     

Impacted Files	Coverage Δ
custom_components/candy/client/__init__.py	97.14% <100.00%> (+4.49%)	⬆️

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