CI: test new string conversion

Author: vouillon

.github/workflows/build-wasm_of_ocaml.yml

@@ -42,7 +42,7 @@ jobs:
       - name: Install node
         uses: actions/setup-node@v4
         with:
-          node-version: 23
+          node-version: '24.0.0-v8-canary'
 
       - name: Restore cached binaryen
         id: cache-binaryen

tools/node_wrapper.sh

@@ -1,3 +1,3 @@
 #!/bin/sh
 export PATH=$(echo $PATH | cut -d : -f 2-) # Do not call oneself recursively
-exec node --experimental-wasm-imported-strings --experimental-wasm-stack-switching --stack-size=10000 "$@"
+exec node --experimental-wasm-stack-switching --stack-size=10000 "$@"