Bump ansible-core from 2.17.2 to 2.18.0 in /requirements #2941

Job	Run time
integration (ldap)	23m 14s
integration (keycloak)	25m 45s
integration (standalone)	24m 53s
integration (rbac_parallel_group_1)	24m 21s
integration (rbac_parallel_group_2)	10m 52s
integration (certified-sync)	7m 56s
integration (insights)	16m 33s
integration (iqe_rbac)	9m 12s
integration (x_repo_search)	11m 31s
integration (community)	15m 41s
integration (dab_jwt)	8m 2s
	2h 58m 0s

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