MVN command not found on Github self-hosted runner about keycloakify HOT 3 CLOSED

name: ci
on:
  push:
    branches:
      - test

jobs:
  build:
    name: build
    runs-on: 'custom-runner'
    steps:
      - run: sudo chown -R $USER:$USER ${{ github.workspace }}

      - uses: actions/checkout@v2
      - name: show maven version
        run: |
          export M2_HOME=/usr/local/apache-maven
          export M2=$M2_HOME/bin 
          export PATH=$M2:$PATH
          mvn -version

      # Setup NodeJS and NPM
      - name: 'Setup Nodejs'
        uses: actions/[email protected]
        with:
          node-version: '16.x'

      - name: install dependencies
        run: npm install

      - run: npm run keycloak-ci
      - uses: actions/upload-artifact@v2
        with:
          name: keycloak_theme
          path: build_keycloak/target/*keycloak-theme*.jar