Introduce kubeapiserver.config.k8s.io/v1 with EncryptionConfiguration and use a standard method for parsing config file.

Co-authored-by: Stanislav Laznicka <slaznick@redhat.com>

cluster/gce/config-default.sh

@@ -216,8 +216,8 @@ fi
 ENCRYPTION_PROVIDER_CONFIG="${ENCRYPTION_PROVIDER_CONFIG:-}"
 if [[ -z "${ENCRYPTION_PROVIDER_CONFIG}" ]]; then
     ENCRYPTION_PROVIDER_CONFIG=$(cat << EOM | base64 | tr -d '\r\n'
-kind: EncryptionConfig
-apiVersion: v1
+kind: EncryptionConfiguration
+apiVersion: apiserver.config.k8s.io/v1
 resources:
   - resources:
     - secrets