Handle changed service metadata json with multiple targets entities

[FrankBakkerNl]

Breaking change

Proposed change

Fixes the incompatibility with HA version 2023.4.0 and greater.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature (which adds functionality to an existing integration)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes Code generation breaks with current beta / release #857
• This PR is related to issue:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the [development checklist][dev-checklist]
• The code compiles without warnings (code quality chek)
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

[codecov]

Codecov Report

Patch coverage: 77.77% and project coverage change: +0.09 🎉

Comparison is base (7fbcc0f) 80.61% compared to head (ab95efb) 80.70%.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #858      +/-   ##
==========================================
+ Coverage   80.61%   80.70%   +0.09%     
==========================================
  Files         161      162       +1     
  Lines        4137     4142       +5     
  Branches      410      411       +1     
==========================================
+ Hits         3335     3343       +8     
+ Misses        639      636       -3     
  Partials      163      163              

Flag	Coverage Δ
unittests	80.70% <77.77%> (+0.09%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...erator/CodeGeneration/ExtensionMethodsGenerator.cs	98.52% <0.00%> (ø)
...a/ServicesMetaData/SingleObjectAsArrayConverter.cs	85.71% <85.71%> (ø)
...deGenerator/MetaData/ServicesMetaData/Selectors.cs	47.05% <100.00%> (+4.95%)	⬆️

... and 1 file with indirect coverage changes

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[helto4real]

Fixes #857

[helto4real]

Great work and fast fix. Thanks alot!