build: bump to OLM 0.20.0 and controller-gen 0.8.0

No particular reason for it, just staying up-to-date.

operator-sdk cannot be updated because of
intel#1069 =
operator-framework/operator-sdk#5574

deploy/crd/pmem-csi.intel.com_pmemcsideployments.yaml

@@ -1,11 +1,10 @@
-# This file was generated by controller-gen v0.7.0 via 'make operator-generate-crd'
-
+# This file was generated by controller-gen v0.8.0 via 'make operator-generate-crd'
 ---
 apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition
 metadata:
   annotations:
-    controller-gen.kubebuilder.io/version: v0.7.0
+    controller-gen.kubebuilder.io/version: v0.8.0
   creationTimestamp: null
   name: pmemcsideployments.pmem-csi.intel.com
 spec:

operator/operator.make

@@ -1,5 +1,7 @@
+# https://github.com/operator-framework/operator-sdk/releases
 OPERATOR_SDK_VERSION=1.17.0
-CONTROLLER_GEN_VERSION=v0.7.0
+# https://github.com/kubernetes-sigs/controller-tools/releases
+CONTROLLER_GEN_VERSION=v0.8.0
 CONTROLLER_GEN=_work/bin/controller-gen-$(CONTROLLER_GEN_VERSION)
 
 # download operator-sdk binary

test/start-stop-olm.sh

@@ -16,7 +16,9 @@ CLUSTER=${CLUSTER:-pmem-govm}
 CLUSTER_DIR="${CLUSTER_DIRECTORY:-${REPO_DIR}/_work/${CLUSTER}}"
 SSH="${CLUSTER_DIR}/ssh.0"
 KUBECTL="${SSH} kubectl" # Always use the kubectl installed in the cluster.
-OLM_VERSION=v0.18.3
+
+# https://github.com/operator-framework/operator-lifecycle-manager/releases
+OLM_VERSION=v0.20.0
 
 function usage() {
     echo "Usage:"