Fix: restrict google-cloud-pubsub version #142

Job	Run time
Unit (3.8, blacksmith-4vcpu-ubuntu-2204)	1m 19s
Unit (3.9, blacksmith-4vcpu-ubuntu-2204)	1m 24s
Unit (3.10, blacksmith-4vcpu-ubuntu-2204)	1m 19s
Unit (3.11, blacksmith-4vcpu-ubuntu-2204)	1m 18s
Unit (3.12, blacksmith-4vcpu-ubuntu-2204)	1m 26s
Integration (3.8, py-amqp, false)	1m 4s
Integration (3.8, py-redis, false)	1m 6s
Integration (3.8, py-mongodb, false)	3m 1s
Integration (3.8, py-kafka, false)	2m 0s
Integration (3.9, py-amqp, false)	1m 8s
Integration (3.9, py-redis, false)	1m 5s
Integration (3.9, py-mongodb, false)	2m 58s
Integration (3.9, py-kafka, false)	2m 2s
Integration (3.10, py-amqp, false)	1m 8s
Integration (3.10, py-redis, false)	1m 7s
Integration (3.10, py-mongodb, false)	3m 2s
Integration (3.10, py-kafka, false)	1m 55s
Integration (3.11, py-amqp, false)	1m 6s
Integration (3.11, py-redis, false)	57s
Integration (3.11, py-mongodb, false)	2m 59s
Integration (3.11, py-kafka, false)	1m 58s
Integration (3.12, py-amqp, false)	1m 14s
Integration (3.12, py-redis, false)	1m 6s
Integration (3.12, py-mongodb, false)	4m 40s
Integration (3.12, py-kafka, false)	2m 9s
Integration (pypy3.10, py-amqp, true)	1m 21s
Integration (pypy3.10, py-redis, true)	1m 13s
Integration (pypy3.10, py-mongodb, true)	3m 21s
	50m 26s

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