Look into enabling 'emit-admission-events'

[garethahealy]

• open-policy-agent/gatekeeper#739
• https://github.com/open-policy-agent/gatekeeper/blob/97c8f8e1daecd650dbe822f45d1191c45546ec69/pkg/webhook/policy.go#L75

[garethahealy]

Update patching for deployment script:

• https://github.com/redhat-cop/rego-policies/blob/master/_test/deploy-gatekeeper.sh#L43

For:

• https://github.com/open-policy-agent/gatekeeper/blob/v3.1.0-beta.12/deploy/gatekeeper.yaml#L615-L618
• https://github.com/open-policy-agent/gatekeeper/blob/v3.1.0-beta.12/deploy/gatekeeper.yaml#L707-L711

To include:

--emit-admission-events=true