Fixed Keycloak SSO image, and upgraded Redis images

[anandf]

What type of PR is this?
/kind bug

Nightly test pipelines were failing with Non OLM installation. These were the test failures. Caused due to wrong Keycloak SSO default image. Also upgraded the Redis and Redis HA default images.

        --- FAIL: kuttl/harness/1-050_validate_sso (788.64s)
        --- FAIL: kuttl/harness/1-028_validate_run_on_infra (738.22s)
        --- FAIL: kuttl/harness/1-008_validate-4.9CI-Failures (723.18s)
        --- FAIL: kuttl/harness/1-020_validate_redis_ha_nonha (723.07s)
        --- FAIL: kuttl/harness/1-002_validate_backend_service (723.29s)

What does this PR do / why we need it:

Have you updated the necessary documentation?

• Documentation update is required by this PR.
• Documentation has been updated.

Which issue(s) this PR fixes:

Fixes #?

Test acceptance criteria:

• Unit Test
• E2E Test

How to test changes / Special notes to the reviewer:

[ishitasequeira]

/approve

[ishitasequeira]

/lgtm

[anandf]

/retest-required

[anandf]

/test v4.12-kuttl-sequential

[ishitasequeira]

/lgtm
/approve

[saumeya]

/approve

[anandf]

/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: anandf, ishitasequeira, saumeya

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