Fixes `findtextlast()` and adds test (#1451) #3275

	name: Build & Test

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]

	jobs:
	build:
	strategy:
	matrix:
	os: [ubuntu-latest, windows-latest]

	runs-on: ${{ matrix.os }}

	steps:
	- uses: actions/checkout@v2
	- name: Setup submodule
	run: \|
	git submodule update --init --recursive
	- name: Pull engine updates
	uses: space-wizards/[email protected]
	- name: Update Engine Submodules
	run: \|
	cd RobustToolbox/
	git submodule update --init --recursive
	- name: Setup .NET Core
	uses: actions/setup-dotnet@v1
	with:
	dotnet-version: 7.0.101
	- name: Install dependencies
	run: dotnet restore
	- name: Build
	run: dotnet build --configuration Release --no-restore /m
	- name: Content.Tests
	shell: pwsh
	run: \|
	$env:COMPlus_gcServer=1
	dotnet test --no-build Content.Tests/Content.Tests.csproj -v n
	- name: Content.IntegrationTests
	shell: pwsh
	run: \|
	$env:COMPlus_gcServer=1
	dotnet test --no-build Content.IntegrationTests/Content.IntegrationTests.csproj -v n

Provide feedback