fix(ci): install nvm in acceptance test runner for macOS

Author: nchamo

.github/workflows/aztec-cli-acceptance-test.yml

@@ -36,13 +36,6 @@ jobs:
         with:
           ref: ${{ github.event.workflow_run.head_sha || github.sha }}
 
-      # Node is only used to run the .ts harness in run-test.sh, which needs >=22.18 for TS
-      # type-stripping. The aztec CLI installer manages its own node version independently.
-      - name: Setup Node.js
-        uses: actions/setup-node@v4
-        with:
-          node-version: 22
-
       - name: Run Aztec CLI acceptance test
         timeout-minutes: 30
         run: ./aztec-up/test/aztec-cli-acceptance-test/run-test.sh

aztec-up/test/aztec-cli-acceptance-test/run-test.sh

@@ -2,7 +2,8 @@
 # Launcher for the Aztec CLI acceptance test.
 #
 # Steps:
-#   1. Install Node via NVM if not present (skipped with SKIP_INSTALL=1)
+#   1. Install NVM and the latest LTS Node (skipped with SKIP_INSTALL=1). NVM is required by the
+#      aztec installer to upgrade Node when the system version is too old.
 #   2. Install the Aztec toolchain via the public installer (skipped with SKIP_INSTALL=1)
 #   3. Run aztec-cli-acceptance-test.ts which exercises the installed toolchain end-to-end
 #
@@ -20,14 +21,17 @@ else
     echo "ERROR: VERSION must be set when SKIP_INSTALL is not 1." >&2
     exit 1
   fi
-  if ! command -v node &>/dev/null; then
-    echo ">>> Installing Node via NVM"
+  if [ ! -f "$HOME/.nvm/nvm.sh" ]; then
+    echo ">>> Installing NVM"
     curl -sL https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.3/install.sh -o /tmp/nvm-install.sh
     PROFILE=/dev/null bash /tmp/nvm-install.sh
-    export NVM_DIR="$HOME/.nvm"
-    set +eu; . "$NVM_DIR/nvm.sh"; set -eu
-    nvm install --lts
   fi
+
+  # Install latest LTS node, since we need it to run the acceptance test correctly
+  export NVM_DIR="$HOME/.nvm"
+  set +eu; . "$NVM_DIR/nvm.sh"; set -eu
+  echo ">>> Installing latest LTS Node via NVM"
+  nvm install --lts
   echo ">>> Installing aztec ${VERSION}"
   NO_NEW_SHELL=1 VERSION="${VERSION}" bash <(curl -sL https://install.aztec.network)
 fi