fix: mount users_database.yml in Authelia pod

Mount the authelia-users Secret as volume at /config/users_database.yml
so Authelia can authenticate user davide.

clusters/lab/security/authelia.yaml

@@ -39,6 +39,15 @@ spec:
         limits:
           cpu: 200m
           memory: 128Mi
+      extraVolumeMounts:
+      - name: users-db
+        mountPath: /config/users_database.yml
+        subPath: users_database.yml
+        readOnly: true
+      extraVolumes:
+      - name: users-db
+        secret:
+          secretName: authelia-users
     ingress:
       enabled: true
       className: traefik