Mark integration tests explicitly as such. #19249

Job	Run time
test / compute-matrix / Compute matrix	17s
test / test (linux, ubuntu-20.04, mysql, MySQL) / MySQL	29m 24s
test / test (linux, ubuntu-20.04, sqlserver, SQL Server on Linux) / SQL Server on Linux	36m 17s
test / test (linux, ubuntu-22.04, aerospike, Aerospike) / Aerospike	11m 53s
test / test (linux, ubuntu-22.04, boundary, Boundary) / Boundary	3m 3s
test / test (linux, ubuntu-22.04, fluentd, Fluentd) / Fluentd	2m 35s
test / test (linux, ubuntu-22.04, yarn, Yarn) / Yarn	4m 18s
test / test (linux, ubuntu-22.04, kafka_consumer, Kafka Consumer) / Kafka Consumer	17m 21s
test / test (windows, windows-2019, sqlserver, SQL Server on Windows) / SQL Server on Windows	51m 48s
test / check	2s
test / save-event / Save event	4s
test / submit-traces / Submit traces	1m 51s
	2h 38m 53s

Provide feedback