Return all custom mapping errors, not just the first one #5811

Job	Run time
Ensure test assets build cleanly	55s
Test and Lint / lint	2m 33s
Test and Lint / test (1.22.x, ubuntu-latest, DEFAULT)	53m 56s
Test and Lint / test (1.22.x, ubuntu-latest, PULUMI_TF_BRIDGE_ACCURATE_BRIDGE_PREVIEW)	53m 38s
Test and Lint / test (1.22.x, macos-latest, DEFAULT)	6m 8s
Test and Lint / test (1.22.x, macos-latest, PULUMI_TF_BRIDGE_ACCURATE_BRIDGE_PREVIEW)	5m 23s
Test and Lint / test (1.22.x, windows-latest, DEFAULT)	14m 12s
Test and Lint / test (1.22.x, windows-latest, PULUMI_TF_BRIDGE_ACCURATE_BRIDGE_PREVIEW)	21m 48s
Test and Lint / test (1.23.x, ubuntu-latest, DEFAULT)	53m 21s
Test and Lint / test (1.23.x, ubuntu-latest, PULUMI_TF_BRIDGE_ACCURATE_BRIDGE_PREVIEW)	53m 38s
Test and Lint / test (1.23.x, macos-latest, DEFAULT)	4m 51s
Test and Lint / test (1.23.x, macos-latest, PULUMI_TF_BRIDGE_ACCURATE_BRIDGE_PREVIEW)	4m 50s
Test and Lint / test (1.23.x, windows-latest, DEFAULT)	18m 14s
Test and Lint / test (1.23.x, windows-latest, PULUMI_TF_BRIDGE_ACCURATE_BRIDGE_PREVIEW)	17m 29s
	5h 10m 56s

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