tmp: run fork CI through rainix eRPC proof branch (do not merge)

Author: kaisbaccour

.github/workflows/rainix-sol.yaml

@@ -2,5 +2,5 @@ name: rainix-sol
 on: [push]
 jobs:
   rainix-sol:
-    uses: rainlanguage/rainix/.github/workflows/rainix-sol.yaml@main
+    uses: rainlanguage/rainix/.github/workflows/rainix-sol.yaml@kais/tmp-erpc-proof
     secrets: inherit