Update ipp to use CoordinatorEntity

[ctalkington]

Breaking change

Proposed change

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• New integration (thank you!)
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[springstan]

Test failures are unrelated:

=========================== short test summary info ============================
FAILED tests/components/marytts/test_tts.py::TestTTSMaryTTSPlatform::test_service_say_http_error
##[error]Process completed with exit code 1.

[bdraco]

Nice 👍