Merge pull request openshift#657 from stevekuznetsov/skuznets/bump-base

OCPBUGS-25262: Updating operator-registry-container image to be consistent with ART for 4.16

Author: openshift-merge-bot[bot]

.ci-operator.yaml

@@ -1,4 +1,4 @@
 build_root_image:
   name: release
   namespace: openshift
-  tag: rhel-9-release-golang-1.20-openshift-4.16
+  tag: rhel-9-release-golang-1.21-openshift-4.16

go.mod

@@ -1,6 +1,6 @@
 module github.com/openshift/operator-framework-olm
 
-go 1.19
+go 1.21
 
 require (
 	github.com/blang/semver/v4 v4.0.0