Make number of premium sessions more clear #6490

Job	Run time
build-and-check	3m 13s
test-integration-packages/billing	1m 11s
test-integration-packages/internal	1m 14s
test-integration-sdk	1m 22s
test-integration-common	50s
test-cli	57s
test-sdk	47s
test-packages/agent-runtime	42s
test-common	40s
test-.agents	39s
test-integration-cli	55s
test-integration-packages/agent-runtime	38s
test-integration-web	51s
test-packages/billing	46s
test-packages/internal	1m 6s
test-web	1m 16s
	17m 7s

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