Add RSpec examples to test the adding of custom fields via LogStasher #478

	on:
	push:
	branches:
	- main
	pull_request:
	workflow_dispatch:
	inputs:
	ref:
	description: 'The branch, tag or SHA to checkout'
	default: main
	type: string

	jobs:
	# Run the test suite against multiple Ruby and Rails versions
	test_matrix:
	strategy:
	fail-fast: false
	matrix:
	# Due to https://github.com/actions/runner/issues/849, we have to use quotes for '3.0'
	ruby: ['3.0', 3.1, 3.2]
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	ref: ${{ inputs.ref \|\| github.ref }}
	- uses: ruby/setup-ruby@v1
	with:
	ruby-version: ${{ matrix.ruby }}
	bundler-cache: true
	- run: bundle exec rake

	# Branch protection rules cannot directly depend on status checks from matrix jobs.
	# So instead we define `test` as a dummy job which only runs after the preceding `test_matrix` checks have passed.
	# Solution inspired by: https://github.521000.bestmunity/t/status-check-for-a-matrix-jobs/127354/3
	test:
	needs: test_matrix
	runs-on: ubuntu-latest
	steps:
	- run: echo "All matrix tests have passed 🚀"

	publish:
	needs: test
	if: ${{ github.ref == 'refs/heads/main' }}
	permissions:
	contents: write
	uses: alphagov/govuk-infrastructure/.github/workflows/publish-rubygem.yml@main
	secrets:
	GEM_HOST_API_KEY: ${{ secrets.ALPHAGOV_RUBYGEMS_API_KEY }}

Provide feedback