device_state_attributes property replaced with extra_state_attributes in HA core

[firstof9]

Describe the Bug
The device_state_attributes property has been replaced with extra_state_attributes in HA core.

The Error

(<class 'custom_components.plex_recently_added.sensor.PlexRecentlyAddedSensor'>) implements device_state_attributes. Please report it to the custom component author.

Indicate if you followed all steps in the troubleshooting doc
Start HA

What data does the sensor display if any?
n/a

What displays when visiting the API URL from the troubleshooting guide?
n/a

Does the default Home Assistant Plex component work for you?
n/a

Home Assistant Version
2021.12.0b1

Additional Context
n/a

[mkanet]

Please try the newer version of this Integration. A lot has changed since then. Sorry for the delay.