refactor: migrate billing and test files to dependency injection pattern #5387

Job	Run time
build-and-check	2m 44s
test-packages/billing	51m 22s
test-common	39s
test-packages/agent-runtime	1m 24s
test-.agents	45s
test-cli	1m 17s
test-sdk	42s
test-integration-sdk	41s
test-packages/internal	46s
test-integration-.agents	39s
test-integration-packages/billing	46s
test-integration-packages/agent-runtime	40s
test-integration-cli	45s
test-web	47s
test-integration-common	47s
test-integration-web	42s
test-integration-packages/internal	40s
	1h 6m 6s

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