Update Compliance Operator to golang 1.21 (#54429)

We're starting to hit issues in our dependency patches because they
require at least golang 1.21.

ci-operator/config/ComplianceAsCode/compliance-operator/ComplianceAsCode-compliance-operator-master.yaml

@@ -7,10 +7,10 @@ base_images:
     name: cli-ocm
     namespace: ci
     tag: latest
-  openshift_release_rhel-8-release-golang-1.20-openshift-4.14:
+  openshift_release_rhel-9-release-golang-1.21-openshift-4.16:
     name: release
     namespace: openshift
-    tag: rhel-8-release-golang-1.20-openshift-4.14
+    tag: rhel-9-release-golang-1.21-openshift-4.16
   rosa-aws-cli:
     name: rosa-aws-cli
     namespace: ci
@@ -19,14 +19,14 @@ build_root:
   image_stream_tag:
     name: release
     namespace: openshift
-    tag: rhel-8-release-golang-1.20-openshift-4.14
+    tag: rhel-9-release-golang-1.21-openshift-4.16
 images:
 - dockerfile_path: Dockerfile.ci
   from: base
   inputs:
-    openshift_release_rhel-8-release-golang-1.20-openshift-4.14:
+    openshift_release_rhel-9-release-golang-1.21-openshift-4.16:
       as:
-      - registry.ci.openshift.org/openshift/release:rhel-8-release-golang-1.20-openshift-4.14
+      - registry.ci.openshift.org/openshift/release:rhel-9-release-golang-1.21-openshift-4.16
   to: compliance-operator
 - dockerfile_path: images/testcontent/Dockerfile.ci
   to: testcontent