fix(cert-manager): Fix stupid typo in file name

infrastructure/cert-manager/kustomization.yaml

@@ -8,6 +8,6 @@ resources:
   - networkpolicy.yaml
   - ../../shared/networkpolicies/allow-from-monitoring.yaml
   - ../../shared/networkpolicies/allow-from-same-namespace.yaml
-  - ../../shared/networkpolicies/allow-from-all-namespace.yaml
+  - ../../shared/networkpolicies/allow-from-all-namespaces.yaml
 patchesStrategicMerge:
   - networkpolicy-patch.yaml