Changing UnitTest Project .Net Version to .Net7 #1008

	name: .NET Core

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

	jobs:
	build:
	runs-on: ubuntu-latest
	defaults:
	run:
	working-directory: ${{env.WrkDir}}
	env:
	WrkDir: ./source
	MainSln: NeoCortexApi.All.sln
	steps:
	- uses: actions/checkout@v2
	- name: Setup .NET Core
	uses: actions/setup-dotnet@v1
	with:
	dotnet-version: \|
	5.0.x
	6.0.x
	7.0.x
	8.0.x

	- name: Install dependencies
	run: dotnet restore ${{env.MainSln}}

	- name: Build
	run: dotnet build ${{env.MainSln}} --configuration Release --no-restore

	# Run test on Test category "SpatialPooler"
	- name: Test
	run: dotnet test ${{env.MainSln}} --no-restore --verbosity normal --filter TestCategory=Prod

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