Enable helm tests in BB CI for keycloak

Helm tests for keycloak were initially disabled due to metallb not being supported in CI. Now that we support MetalLB in CI we should be able to enable the keycloak tests.

This may require:

• Adding required test values to the k3d-values to enable helm tests + configure keycloak properly
• Modifying the helm test as need to ensure it consistently passes (may require increased timeouts/wait times, modifications to make it work on upgrade jobs)

AC:

• Keycloak helm tests enabled and consistently passing in BB CI