Change SR Linux release to 25.7.1

Author: ipspace

netsim/devices/srlinux.yml

@@ -22,7 +22,7 @@ bfd:                                    # SR Linux supports lower BFD timers tha
   min_tx: 100
   min_rx: 100
 clab:
-  image: ghcr.io/nokia/srlinux:25.3.3
+  image: ghcr.io/nokia/srlinux:25.7.1
   node:
     kind: srl
     type: ixrd2