Fix missing import for QuadToSpline #2106

Job	Run time
Check the name of the branch	2s
Documentation Style Check	1m 10s
Code style	56s
Build and Smoke tests (ubuntu-latest, 3.8, false)	46s
Build and Smoke tests (ubuntu-latest, 3.9, false)	38s
Build and Smoke tests (ubuntu-latest, 3.10, false)	34s
Build and Smoke tests (ubuntu-latest, 3.11, false)	44s
Build and Smoke tests (windows-latest, 3.8, false)	1m 15s
Build and Smoke tests (windows-latest, 3.9, false)	1m 7s
Build and Smoke tests (windows-latest, 3.10, false)	1m 31s
Build and Smoke tests (windows-latest, 3.11, false)	1m 8s
Documentation	24m 31s
Run Unit Tests	5m 39s
Package library	25s
Release project	0s
Upload dev documentation	0s
Upload release documentation	0s
	40m 26s

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