cabal update fails

[jhidding]

Using the template exactly as it is given,

name: Haskell CI

on: [push]

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v1
    - uses: actions/setup-haskell@v1
      with:
        ghc-version: '8.6.5'
        cabal-version: '3.0'
    - name: Install dependencies
      run: |
        cabal update
        cabal install --only-dependencies --enable-tests
    - name: Build
      run: |
        cabal configure --enable-tests
        cabal build
    - name: Run tests
      run: cabal test

I get the following error

Run cabal update
Config file path source is default config file.
Config file /home/runner/.cabal/config not found.
Writing default configuration to /home/runner/.cabal/config
Downloading the latest package list from hackage.haskell.org
cabal: --enable-tests was specified, but tests can't be enabled in a remote
package

##[error]Process completed with exit code 1.

[jhidding]

Removing --enable-tests from the template fixes this