Add support for coordinate inputs in polyfit. #13894

Job	Run time
Event File	2s
detect ci trigger	4s
ubuntu-latest py3.10	8m 5s
ubuntu-latest py3.12	9m 26s
macos-latest py3.10	5m 36s
macos-latest py3.12	10m 0s
windows-latest py3.10	9m 55s
windows-latest py3.12	9m 46s
ubuntu-latest py3.10 bare-minimum	1m 36s
ubuntu-latest py3.10 min-all-deps	6m 44s
ubuntu-latest py3.11 all-but-dask	5m 44s
ubuntu-latest py3.12 flaky	1m 52s
	1h 8m 50s

Provide feedback