refactor: migrate billing and test files to dependency injection pattern #5396

Job	Run time
build-and-check	2m 42s
test-packages/billing	51m 29s
test-integration-packages/agent-runtime	44s
test-cli	1m 8s
test-common	39s
test-integration-.agents	38s
test-integration-cli	39s
test-sdk	43s
test-integration-packages/billing	43s
test-.agents	46s
test-packages/agent-runtime	1m 0s
test-integration-common	47s
test-integration-packages/internal	41s
test-web	51s
test-integration-sdk	41s
test-packages/internal	50s
test-integration-web	48s
	1h 5m 49s

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