Node version set by NVM is forgotten

Build Environment
1

I’ve already tried what is recommended here:

nvm-does-not-change-node-version-on-machine/28973/14

I have the following in config.yml:

executors:
  ubuntu:
    machine:
      image: ubuntu-2204:current

jobs:
  build:
    executor: ubuntu
    steps:
      - checkout
      - run:
          name: Enable Node Version Manager
          command: echo ' [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"' >> $BASH_ENV
      - run:
          name: Set Default Node Version
          command: nvm install 18; nvm alias default 18
      - run: 
          name: Validate version
          command: echo "Node is installed $(node -v)

The output is still showing the incorrect version

Node is installed v20.12.2