Fix issue with watermeter requests

[klaasnicolaas]

Old versions of P1 Monitor give a 404 when you make a request for the water meter data, newer versions give an empty list [].

[codecov]

Codecov Report

Base: 95.62% // Head: 95.68% // Increases project coverage by +0.06% 🎉

Coverage data is based on head (6e89f43) compared to base (6242217).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #233      +/-   ##
==========================================
+ Coverage   95.62%   95.68%   +0.06%     
==========================================
  Files           3        3              
  Lines         137      139       +2     
  Branches       19       20       +1     
==========================================
+ Hits          131      133       +2     
  Misses          3        3              
  Partials        3        3              

Impacted Files	Coverage Δ
p1monitor/p1monitor.py	100.00% <100.00%> (ø)

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[elupus]

Looks reasonable

[klaasnicolaas]

I only fail writing extra tests for the exception, no matter what I try I don't get in the ClientResponseError :(

[klaasnicolaas]

For now I'm converting this to a draft