Add strimzi 0.48 (#573)

Author: zalegrala

libs/strimzi/config.jsonnet

@@ -1,6 +1,6 @@
 local config = import 'jsonnet/config.jsonnet';
 
-local versions = ['0.40', '0.41', '0.42','0.43', '0.44', '0.45'];
+local versions = ['0.40', '0.41', '0.42', '0.43', '0.44', '0.45', '0.48'];
 
 config.new(
   name='strimzi',