Fixed EuCNC24 test:

- Updated version of Arista cEOS to 4.31.5M

src/tests/eucnc24/clab/eucnc24.clab.yml

@@ -26,10 +26,17 @@ topology:
       kind: arista_ceos
       #image: ceos:4.30.4M
       #image: ceos:4.31.2F
-      #image: ceos:4.31.5M
+      image: ceos:4.31.5M
       #image: ceos:4.32.0F
-      image: ceos:4.32.2F
+      
+      # Not working; after deleting TFS service, create IETF service reports
+      # "failed to apply: one and only one primary IPv4 address can be specified"
+      # However, there is no previous IP address in the interface, so it makes
+      # no sense. Issue with Arista cEOS.
+      #image: ceos:4.32.2F
+
       #image: ceos:4.32.2.1F
+      #image: ceos:4.33.1F
     linux:
       kind: linux
       image: ghcr.io/hellt/network-multitool:latest