Update SGO supported OCP versions

[vkmc]

Bump the major supported OCP version for SGO to OCP 4.18

[softwarefactory-project-zuul]

Build failed (check pipeline). Post recheck (without leading slash)
to rerun all jobs. Make sure the failure cause has been resolved before
you rerun jobs.

https://softwarefactory-project.io/zuul/t/rdoproject.org/buildset/e08c805aebf640b5b296f776c7ddde45

❌ stf-crc-ocp_414-local_build RETRY_LIMIT in 17m 03s
✔️ stf-crc-ocp_416-local_build SUCCESS in 35m 41s
❌ stf-crc-ocp_414-local_build-index_deploy RETRY_LIMIT in 26m 09s
✔️ stf-crc-ocp_416-local_build-index_deploy SUCCESS in 41m 45s
❌ stf-crc-ocp_414-nightly_bundles-index_deploy RETRY_LIMIT in 26m 46s
✔️ stf-crc-ocp_416-nightly_bundles-index_deploy SUCCESS in 29m 38s

[softwarefactory-project-zuul]

Build failed (check pipeline). Post recheck (without leading slash)
to rerun all jobs. Make sure the failure cause has been resolved before
you rerun jobs.

https://softwarefactory-project.io/zuul/t/rdoproject.org/buildset/b6b56859cffa490483e4172a697063d1

❌ stf-crc-ocp_414-local_build FAILURE in 24m 09s
✔️ stf-crc-ocp_416-local_build SUCCESS in 39m 22s
❌ stf-crc-ocp_414-local_build-index_deploy FAILURE in 24m 30s
❌ stf-crc-ocp_416-local_build-index_deploy FAILURE in 27m 08s
❌ stf-crc-ocp_414-nightly_bundles-index_deploy FAILURE in 23m 16s
❌ stf-crc-ocp_416-nightly_bundles-index_deploy FAILURE in 22m 15s