use w with fernando's fix for gateway test

Author: jiridanek

.github/actions/skupper-integration-tests/action.yml

@@ -29,7 +29,7 @@ inputs:
   skupperGitRef:
     required: false
     description: Reference to skupper version
-    default: "ec536234bac4b37357d2a6808818b3e6ae01a915"
+    default: "26012483890940c14b1692bc6db7135790f922a5"
 
 runs:
   using: "composite"