chezmoi: .chezmoiroot not working in GitHub Actions

Describe the bug

.chezmoiroot seems to be ignored when using one line install with GitHub Actions

To reproduce

add .chezmoiroot

home

add home/.chezmoiscripts/run_once_echo.sh.tmpl

{{ if eq .chezmoi.os "darwin" -}}
#!/usr/bin/env bash

set -euo pipefail

echo {{ .chezmoi.sourceDir }}

{{ end -}}

add .github/workflows/test.yaml

name: Test install

on:
  workflow_dispatch:
    inputs:
      username:
        description: 'GitHub UseName'
        required: true
        type: string

jobs:
  test:
    strategy:
      fail-fast: false
      matrix:
        platform: [ubuntu-latest, macos-latest]
    runs-on: ${{ matrix.platform }}
    timeout-minutes: 30
    steps:
    - name: Run install
      run: sh -c "$(curl -fsLS get.chezmoi.io)" -- init --apply ${{ inputs.username }} 

when dispatch Test install workflow, echo /Users/runner/.local/share/chezmoi

Expected behavior

echo /Users/runner/.local/share/chezmoi/home