chore(deps): update pydio/cells docker tag to v4.4.15 (#430)

Co-authored-by: Renovate Bot <[email protected]>

Author: soerenschneider

apps/pydio/deployment.yaml

@@ -32,7 +32,7 @@ spec:
           type: RuntimeDefault
       containers:
         - name: pydio
-          image: pydio/cells:4.4.12
+          image: pydio/cells:4.4.15
           ports:
             - name: pydio
               containerPort: 8080