Update actions/add-to-project action to v2 #6378

Job	Run time
kubectl-plugin (ubuntu-24.04)	2m 31s
Build-custom-scorecard-tests	4m 40s
Test-operator	6m 39s
Build-operator (ubuntu-24.04)	5m 42s
Build-operator (ubuntu-24.04-arm)	4m 14s
Lint	30s
kubectl-plugin (ubuntu-24.04-arm)	1m 9s
Auto Generated Files Check	40s
End-to-end (ubuntu-24.04, 1.31.0)	18m 49s
End-to-end (ubuntu-24.04, 1.30.0)	17m 41s
End-to-end (ubuntu-24.04, 1.29.0)	19m 13s
End-to-end (ubuntu-24.04, 1.27.3)	20m 27s
End-to-end (ubuntu-24.04-arm, 1.35.0)	14m 56s
End-to-end (ubuntu-24.04, 1.33.1)	18m 57s
End-to-end (ubuntu-24.04, 1.34.3)	22m 45s
End-to-end (ubuntu-24.04, 1.20.15)	22m 13s
End-to-end (ubuntu-24.04, 1.28.0)	17m 38s
End-to-end (ubuntu-24.04, 1.35.0)	19m 2s
End-to-end (ubuntu-24.04, 1.32.2)	19m 13s
Successful e2e tests	4s
Containers should be pushed	0s
Fast forward release branch	0s
Push operator container to registry	0s
Push custom scorecard container to registry	0s
	3h 57m 3s

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