[fix] Australia config

resources/addresses/en.yaml

@@ -1391,10 +1391,13 @@ countries:
         po_boxes: &australia_po_boxes
             alphanumeric:
                 default: *po_box
-                probability: 0.94
+                alternatives: []
+                probability: 0.95
                 # Australia has many strings for this e.g. Roadside Mail Bag
                 sample: true
-                sample_probability: 0.01
+                sample_probability: 0.05
+                numeric:
+                    direction: left
         units: &australia_unit_types
             alphanumeric:
                 # Australia has all kinds of unit types (e.g. Marine Berth) not used elsewhere

resources/addresses/es.yaml

@@ -1065,8 +1065,8 @@ countries:
 
     # Argentina
     ar:
-        po_box:
-            numeric:
+        po_boxes:
+            alphanumeric:
                 sample: false
                 default:
                     canonical: casilla de correos
@@ -1076,8 +1076,8 @@ countries:
 
     # Chile
     cl:
-        po_box:
-            numeric:
+        po_boxes:
+            alphanumeric:
                 sample: false
                 default:
                     canonical: casilla de correos