cert-manager: 1.19.6 -> 1.20.3

Change-Id: Iabb070751250884fca8064f8b27d0a86a63959af
diff --git a/charts/cert-manager/templates/crd-cert-manager.io_certificaterequests.yaml b/charts/cert-manager/templates/crd-cert-manager.io_certificaterequests.yaml
index e25ad1d..2b54283 100644
--- a/charts/cert-manager/templates/crd-cert-manager.io_certificaterequests.yaml
+++ b/charts/cert-manager/templates/crd-cert-manager.io_certificaterequests.yaml
@@ -312,6 +312,10 @@
                   type: string
               type: object
           type: object
+      selectableFields:
+        - jsonPath: .spec.issuerRef.group
+        - jsonPath: .spec.issuerRef.kind
+        - jsonPath: .spec.issuerRef.name
       served: true
       storage: true
       subresources: