Modify GetRows() and GetRowsFormatted() to return nullable IList #143

	name: MainBuild

	on:
	push:
	branches: [ main ]
	paths-ignore:
	- '**/README.md'
	pull_request:
	branches: [ main ]

	env:
	DOTNET_VERSION: '6.0.x'

	jobs:
	build:

	runs-on: ubuntu-latest
	defaults:
	run:
	working-directory: 'src'

	steps:
	- uses: actions/checkout@v3

	- name: Setup .NET
	uses: actions/setup-dotnet@v2
	with:
	dotnet-version: ${{ env.DOTNET_VERSION }}

	# Restore nuget packages
	- name: Restore dependencies
	run: dotnet restore

	# build the source
	- name: Build
	run: dotnet build --no-restore

	# Run the unit tests
	- name: Test
	run: dotnet test --no-build --verbosity normal

	# Publish to NuGet
	- name: publish on version change
	id: publish_nuget
	# Using forked version of publish-nuget
	# https://github.com/brandedoutcast/publish-nuget/issues/76
	uses: alirezanet/[email protected]
	with:
	# Filepath of the project to be packaged, relative to root of repository
	PROJECT_FILE_PATH: src/GoogleSheetsWrapper/GoogleSheetsWrapper.csproj
	NUGET_KEY: ${{secrets.NUGET_API_KEY}}
	INCLUDE_SYMBOLS: true

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