add s390x support #2256

Job	Run time
1.21-bullseye	5m 56s
upgrade-rpm (amazonlinux:2023)	42s
upgrade-rpm (registry.access.redhat.com/ubi8/ubi)	47s
upgrade-deb (amd64, ubuntu:bionic)	47s
test-controller	9s
upgrade-rpm (registry.access.redhat.com/ubi9/ubi)	45s
upgrade-deb (amd64, ubuntu:focal)	44s
upgrade-deb (amd64, ubuntu:jammy)	50s
upgrade-deb (amd64, debian:bullseye)	40s
upgrade-deb (amd64, debian:bookworm)	41s
upgrade-deb (arm64, ubuntu:bionic)	2m 45s
upgrade-deb (arm64, ubuntu:focal)	2m 49s
upgrade-deb (arm64, ubuntu:jammy)	2m 37s
upgrade-deb (arm64, debian:bullseye)	2m 14s
upgrade-deb (arm64, debian:bookworm)	2m 38s
sbom / changedfiles	2s
sbom / SBOM	28s
api-tests (sha256, mongo44, $ECR/tyk-sink:master)	3m 4s
api-tests (sha256, postgres15, $ECR/tyk-sink:master)	7m 10s
	35m 48s

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