Test nearbyint_as_int using xsimd's scalar version instead of lround #1742

	name: C++ compatibility build
	on: [push, pull_request]
	concurrency:
	group: ${{ github.workflow }}-${{ github.job }}-${{ github.ref }}
	cancel-in-progress: true
	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	cxx-version: [11, 14, 17, 20]
	steps:
	- uses: actions/checkout@v3
	- name: Install dependencies
	run: \|
	sudo apt install g++ cmake
	- name: Setup
	run: \|
	mkdir _build
	cd _build && cmake .. -DBUILD_TESTS=ON -DDOWNLOAD_DOCTEST=ON -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_STANDARD=${{matrix.cxx-version}}
	- name: Build
	run: cmake --build _build

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