Revert restrictions on using paid codebuff #6110

Job	Run time
build-and-check	3m 10s
test-integration-packages/billing	1m 13s
test-integration-packages/internal	1m 21s
test-integration-cli	49s
test-integration-web	44s
test-common	50s
test-cli	1m 0s
test-integration-packages/agent-runtime	45s
test-integration-sdk	1m 16s
test-integration-common	44s
test-.agents	45s
test-packages/agent-runtime	48s
test-packages/billing	42s
test-sdk	49s
test-web	1m 47s
test-packages/internal	45s
	17m 28s

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