Update Submariner dependencies to v0.18.4 #1372

Job	Run time
E2E (libreswan, 1.29)	2m 12s
E2E (libreswan, 1.29, lighthouse)	5m 52s
E2E (libreswan, globalnet, 1.29)	2m 45s
E2E (libreswan, globalnet, 1.29, lighthouse)	6m 46s
E2E (wireguard, 1.29)	2m 13s
E2E (wireguard, 1.29, lighthouse)	5m 19s
E2E (wireguard, globalnet, 1.29)	2m 41s
E2E (wireguard, globalnet, 1.29, lighthouse)	6m 11s
E2E (vxlan, 1.29)	2m 46s
E2E (vxlan, 1.29, lighthouse)	5m 38s
E2E (vxlan, globalnet, 1.29)	2m 50s
E2E (vxlan, globalnet, 1.29, lighthouse)	6m 38s
E2E (1.26)	2m 36s
	54m 27s

Provide feedback