Don't fail on energy scan with legacy modules

[Shulyaka]

Fixes home-assistant/core#103208

If we receive the RuntimeError exeption on ED command, return zero energy scanning results instead of raising the exception.

[puddly]

Thanks! It would be nice to use a more specific exception than RuntimeError to deal with unknown commands.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (626bce6) 100.00% compared to head (0b0abbf) 100.00%.

Additional details and impacted files

@@            Coverage Diff            @@
##               dev      #166   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files            7         7           
  Lines          780       784    +4     
=========================================
+ Hits           780       784    +4     

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[Shulyaka]

It would be nice to use a more specific exception than RuntimeError to deal with unknown commands.

While checking your suggestion, I have noticed that the actual error is slightly different, it's not an unknown command but invalid parameter.
I will need some more time to double check the solution.

[Shulyaka]

Superseded by #168. The command is supported. This PR is not needed.

[Shulyaka]

Reopen for home-assistant/core#103208 (comment)

[Shulyaka]

Once #169 is merged, I will update this PR to use a more specific exception.

[Shulyaka]

Done, updated and rebased.