fix: auto arima xreg rank deficient test #1756

Job	Run time
test-m3-performance	2m 35s
Run tests for cp38-manylinux_x86_64	11m 50s
Run tests for cp38-manylinux_aarch64	3m 17s
Run tests for cp38-win_amd64	12m 56s
Run tests for cp38-macosx_x86_64	6m 46s
Run tests for cp38-macosx_arm64	2m 46s
Run tests for cp39-manylinux_x86_64	11m 42s
Run tests for cp39-manylinux_aarch64	3m 14s
Run tests for cp39-win_amd64	11m 37s
Run tests for cp39-macosx_x86_64	8m 5s
Run tests for cp39-macosx_arm64	4m 48s
Run tests for cp310-manylinux_x86_64	12m 33s
Run tests for cp310-manylinux_aarch64	3m 9s
Run tests for cp310-win_amd64	12m 42s
Run tests for cp310-macosx_x86_64	8m 42s
Run tests for cp310-macosx_arm64	3m 41s
Run tests for cp311-manylinux_x86_64	12m 18s
Run tests for cp311-manylinux_aarch64	3m 21s
Run tests for cp311-win_amd64	12m 0s
Run tests for cp311-macosx_x86_64	7m 23s
Run tests for cp311-macosx_arm64	2m 57s
Run tests for cp312-manylinux_x86_64	11m 27s
Run tests for cp312-manylinux_aarch64	2m 57s
Run tests for cp312-win_amd64	11m 35s
Run tests for cp312-macosx_x86_64	9m 15s
Run tests for cp312-macosx_arm64	3m 22s
publish-nightly-wheels	0s
	3h 16m 58s

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