fix(billing): inline consumeFromOrderedGrants in integration test to … #5494

Job	Run time
build-and-check	2m 26s
test-integration-packages/billing	1m 19s
test-.agents	38s
test-integration-cli	46s
test-common	46s
test-cli	1m 10s
test-integration-packages/internal	46s
test-integration-sdk	39s
test-integration-web	41s
test-integration-common	39s
test-web	48s
test-packages/agent-runtime	49s
test-packages/internal	52s
test-sdk	39s
test-packages/billing	39s
test-integration-packages/agent-runtime	42s
	14m 19s

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