Update dependencies and target frameworks and fix build warnings #246

	name: 'Build and Test'

	on:
	push:
	pull_request:
	branches: [ main ]
	release:
	types:
	- published

	env:
	DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
	DOTNET_CLI_TELEMETRY_OPTOUT: true

	# Project name to pack and publish
	PROJECT_NAME: GeoJSON.Text

	jobs:
	build:

	name: 'Build and Test'
	runs-on: windows-2019

	env:
	VSTEST_CONNECTION_TIMEOUT: 900

	steps:
	- uses: actions/checkout@v4
	- name: Setup .NET
	uses: actions/setup-dotnet@v4
	with:
	dotnet-version: \|
	6.0.x
	8.0.x
	- name: Install dependencies
	run: dotnet restore src/${{ env.PROJECT_NAME }}.sln
	- name: Build solution
	run: dotnet build src/${{ env.PROJECT_NAME }}.sln -c Release --no-restore
	- name: Test
	run: dotnet test src/${{ env.PROJECT_NAME }}.sln -c Release --no-build /p:CollectCoverage=true /p:CoverletOutputFormat=opencover /p:CoverletOutput=../coverage/
	- uses: codecov/codecov-action@v4
	if: github.ref == 'refs/heads/main'
	with:
	token: ${{ secrets.CODECOV_TOKEN }}
	directory: src/coverage
	flags: unittests
	- name: Upload Artifact
	uses: actions/upload-artifact@v4
	with:
	name: nupkg
	path: src/${{ env.PROJECT_NAME }}/bin/Release/*.nupkg

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