Remove redundant CI tests (appveyor, circleci) and rely only on github actions matrix windows/macos/ubuntu #218

	name: ci/action ctest Ubuntu v3
	on:
	push:
	paths-ignore:
	- docs/**
	- '**.md'
	- '**.markdown'
	- '**.yml'
	branches: [ master ]
	pull_request:
	paths-ignore:
	- docs/**
	- '**.md'
	- '**.markdown'
	branches: [ master ]

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4

	- name: Print env
	run: \|
	echo github.event.action: ${{ github.event.action }}
	echo github.event_name: ${{ github.event_name }}
	gcc --version
	sudo add-apt-repository ppa:ubuntu-toolchain-r/test
	sudo apt-get update
	sudo apt-get install ninja-build cmake gcc-9 g++-9
	sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-9 90 --slave /usr/bin/g++ g++ /usr/bin/g++-9 --slave /usr/bin/gcov gcov /usr/bin/gcov-9
	echo gcc version after
	gcc --version
	cmake --version
	# example: https://gist.github.com/NickNaso/0d478f1481686d5bcc868cac06620a60
	- name: configure
	shell: bash
	# run: ./configure
	run: ./scripts/buildAndRunTests.sh


	#- name: make
	# run: make
	#- name: make check
	# run: make check
	#- name: make distcheck
	# run: make distcheck

Provide feedback