add service account with allow-app-sharing-role permissions #5139

Job	Run time
Test Nebari Provider (aws, none)	1m 22s
Test Nebari Provider (aws, github-actions)	1m 23s
Test Nebari Provider (aws, gitlab-ci)	1m 41s
Test Nebari Provider (azure, none)	1m 10s
Test Nebari Provider (azure, github-actions)	1m 15s
Test Nebari Provider (azure, gitlab-ci)	58s
Test Nebari Provider (gcp, none)	1m 5s
Test Nebari Provider (gcp, github-actions)	1m 24s
Test Nebari Provider (gcp, gitlab-ci)	1m 16s
Test Nebari Provider (local, none)	1m 18s
Test Nebari Provider (local, github-actions)	1m 14s
Test Nebari Provider (local, gitlab-ci)	1m 9s
Test Nebari Provider (existing, none)	1m 5s
Test Nebari Provider (existing, github-actions)	1m 23s
Test Nebari Provider (existing, gitlab-ci)	1m 5s
	18m 48s

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