MAINT: Bump ansys/actions from 5 to 6 #127

Job	Run time
Code style	37s
Documentation	1m 29s
Build and Smoke tests (ubuntu-latest, 3.8)	13s
Build and Smoke tests (ubuntu-latest, 3.9)	18s
Build and Smoke tests (ubuntu-latest, 3.10)	18s
Build and Smoke tests (ubuntu-latest, 3.11)	24s
Build and Smoke tests (ubuntu-latest, 3.12)	22s
Build and Smoke tests (windows-latest, 3.8)	1m 0s
Build and Smoke tests (windows-latest, 3.9)	1m 3s
Build and Smoke tests (windows-latest, 3.10)	1m 16s
Build and Smoke tests (windows-latest, 3.11)	1m 8s
Build and Smoke tests (windows-latest, 3.12)	1m 0s
Run unit tests (3.8)	16s
Run unit tests (3.9)	12s
Run unit tests (3.10)	23s
Run unit tests (3.11)	15s
Run unit tests (3.12)	15s
Package library	24s
Upload documentation	0s
	10m 53s

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