k8s-cloud-builder: update variants and add bulleyes

Signed-off-by: Carlos Panato <[email protected]>

Author: cpanato

Diff for: images/k8s-cloud-builder/variants.yaml

@@ -1,10 +1,16 @@
 variants:
-  cross1.17:
+  v1.23-cross1.17-bullseye:
+    CONFIG: 'cross1.17'
+    KUBE_CROSS_VERSION: 'v1.23.0-go1.17.1-bullseye.1'
+  v1.23-cross1.17-buster:
     CONFIG: 'cross1.17'
     KUBE_CROSS_VERSION: 'v1.23.0-go1.17.1-buster.0'
-  cross1.16:
+  v1.22-cross1.16-buster:
     CONFIG: 'cross1.16'
     KUBE_CROSS_VERSION: 'v1.22.0-go1.16.8-buster.0'
+  v1.21-cross1.16-buster:
+    CONFIG: 'cross1.16'
+    KUBE_CROSS_VERSION: 'v1.21.0-go1.16.8-buster.0'
   cross1.15:
     CONFIG: 'cross1.15'
     KUBE_CROSS_VERSION: 'v1.15.15-1'