Bump actions/checkout from 3 to 4 (#2392) #72

Job	Run time
📦 Build the source distribution	28s
Tests on 3.8	6m 35s
Tests for Kafka 0.8.2.2	4m 2s
Tests on 3.9	8m 22s
Tests for Kafka 0.9.0.1	5m 9s
Tests on 3.10	7m 28s
Tests for Kafka 0.10.2.2	4m 20s
Tests on 3.11	10m 12s
Tests for Kafka 0.11.0.2	5m 26s
Tests on pypy3.9	12m 48s
Tests for Kafka 0.11.0.3	7m 51s
Tests on ~3.12.0-0	7m 27s
Tests for Kafka 1.1.1	8m 38s
Tests for Kafka 2.4.0	7m 47s
Tests for Kafka 2.5.0	11m 36s
Tests for Kafka 2.6.0	6m 37s
✅ Ensure the required checks passing	4s
	1h 54m 50s

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