Add GitHub Actions workflow for Copilot environment setup and consolidate .NET setup across all workflows #1185

	name: Build and Test

	on:
	push:
	branches: [ 'v[1-9][0-9].0' ]
	pull_request:
	branches: [ 'v[1-9][0-9].0' ]
	schedule:
	- cron: 0 6 * * 1

	jobs:
	automerge:
	runs-on: ubuntu-latest

	permissions:
	pull-requests: write
	contents: write

	steps:
	- uses: fastify/github-action-merge-dependabot@v3.11.1
	with:
	use-github-auto-merge: true

	build-and-test:
	name: build-and-test on ${{matrix.os}}
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest, windows-latest, macOS-latest]
	steps:
	- uses: actions/checkout@v5
	- name: Setup .NET environment
	uses: ./.github/actions/setup-dotnet
	- name: Test
	run: dotnet test --no-build --no-restore --verbosity normal --logger trx --results-directory ${{ runner.temp }}

	- name: Convert TRX to VS Playlist
	if: failure()
	uses: BenjaminMichaelis/trx-to-vsplaylist@v1
	with:
	trx-file-path: '${{ runner.temp }}/*.trx'
	output-directory: '${{ runner.temp }}/vsplaylists'

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