Ensure late arriving messages from previous requests are ignored

[bdraco]

Fixes #135

[codecov-commenter]

Codecov Report

Merging #136 (1732c97) into master (3199eb5) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #136      +/-   ##
==========================================
+ Coverage   89.39%   89.41%   +0.01%     
==========================================
  Files          12       12              
  Lines         858      869      +11     
==========================================
+ Hits          767      777      +10     
- Misses         91       92       +1     

Impacted Files	Coverage Δ
pywizlight/bulb.py	90.49% <100.00%> (+0.01%)	⬆️
pywizlight/push_manager.py	98.80% <100.00%> (ø)

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[bdraco]

This one should probably get another release since its pretty easy to replicate when the firmware is updating on a newly setup bulb which leads to the config flow discovery being aborted if it happens to not reply on the first request when its out of box firmware doesn't support getModelConfig

[bdraco]

Looks like you already pushed .12 🚀