Updating klipper from 0.10 to 0.13 Z-offset

General Discussion
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Git version: 'v0.13.0-535-g636a6141f-dirty'
Untracked files: klippy/extras/ercf.py, klippy/extras/z_calibration.py
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Have you tested with a pristine Klipper version ? (-> The "dirty" Flag and the Team's Position)
Have you checked the extras you use are compatible to v0.13.0 of Klipper?