chore: add output saying how to get the right noir version (#2622)

hopefully saves a little time when the version is mismatched

yarn-project/noir-contracts/scripts/nargo_check.sh

@@ -6,7 +6,15 @@ nargo_check() {
     EXPECTED_VERSION=$(jq -r '.commit' ../noir-compiler/src/noir-version.json)
     FOUND_VERSION=$(nargo --version | grep -o 'git version hash: [0-9a-f]*' | cut -d' ' -f4)
     if [ "$EXPECTED_VERSION" != "$FOUND_VERSION" ]; then
-      echo "Expected nargo version $EXPECTED_VERSION but found version $FOUND_VERSION. Aborting."
-      exit 1
+        echo "Expected nargo version $EXPECTED_VERSION but found version $FOUND_VERSION. Aborting."
+
+        # Get the directory of the script and the parent directory, where its meant to be run
+        SCRIPT_DIR="$(dirname "$(realpath "$0")")"
+        PARENT_DIR="$(dirname "$SCRIPT_DIR")"
+
+        # bootstrap.sh calls this non-interactively, so we can't just ask for confirmation to autorun this script.
+        echo "To fix the version issue, you can run the following command:"
+        echo "cd $PARENT_DIR && scripts/install_noir.sh"
+        exit 1
     fi
 }