BUG: fix incorrect config override #2086 (#2087) #2815

Job	Run time
Test Nebari Provider (aws, none)	2m 20s
Test Nebari Provider (aws, github-actions)	1m 53s
Test Nebari Provider (aws, gitlab-ci)	1m 21s
Test Nebari Provider (azure, none)	1m 48s
Test Nebari Provider (azure, github-actions)	1m 53s
Test Nebari Provider (azure, gitlab-ci)	1m 48s
Test Nebari Provider (do, none)	1m 29s
Test Nebari Provider (do, github-actions)	1m 36s
Test Nebari Provider (do, gitlab-ci)	1m 50s
Test Nebari Provider (gcp, none)	1m 48s
Test Nebari Provider (gcp, github-actions)	1m 53s
Test Nebari Provider (gcp, gitlab-ci)	1m 28s
Test Nebari Provider (local, none)	2m 0s
Test Nebari Provider (local, github-actions)	1m 9s
Test Nebari Provider (local, gitlab-ci)	1m 49s
Test Nebari Provider (existing, none)	1m 52s
Test Nebari Provider (existing, github-actions)	1m 28s
Test Nebari Provider (existing, gitlab-ci)	1m 29s
	30m 54s

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