feat: Add PHP 8.4 support (#415) #159

Job	Run time
Deploy OpenStack bobcat and run integration tests with php 8.1	18m 27s
Deploy OpenStack bobcat and run integration tests with php 8.1	18m 27s
Deploy OpenStack dalmatian and run integration tests with php	19m 8s
Deploy OpenStack dalmatian and run integration tests with php	19m 8s
Deploy OpenStack caracal and run integration tests with php	20m 4s
Deploy OpenStack caracal and run integration tests with php	20m 4s
Deploy OpenStack antelope and run integration tests with php	3m 27s
Deploy OpenStack antelope and run integration tests with php	2m 22s
Deploy OpenStack zed and run integration tests with php	17m 39s
Deploy OpenStack zed and run integration tests with php	17m 39s
Deploy OpenStack yoga and run integration tests with php	19m 50s
Deploy OpenStack yoga and run integration tests with php	22m 22s
Deploy OpenStack wallaby and run integration tests with php	18m 27s
Deploy OpenStack wallaby and run integration tests with php	18m 27s
	3h 55m 31s

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