CI: migrate FreeBSD job to Github Actions #2

	name: Github Actions CI
	permissions: {}
	on:
	pull_request:
	branches:
	- main
	jobs:
	freebsd15:
	name: FreeBSD 15.0
	runs-on: ubuntu-24.04
	steps:
	- uses: vmactions/freebsd-vm@7ca82f79fe3078fecded6d3a2bff094995447bbd
	with:
	sync: no
	release: "15.0"
	usesh: true
	run: \|
	set -e
	set -o pipefail
	set -u
	set -x
	uname -rms
	pkg install -y base64 cmake json-c openssl pkgconf python3 scrypt vim
	python3 --version
	sudo python3 -m ensurepip
	sudo python3 -m pip install pexpect pytest
	git clone --no-checkout -- ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} wd
	cd wd
	git fetch -- origin ${{ github.event.pull_request.head.sha }}
	git checkout FETCH_HEAD
	export CFLAGS="-pedantic -Werror -g -fno-omit-frame-pointer -fsanitize=address,undefined -fno-sanitize-recover=address,undefined"
	export UBSAN_OPTIONS=print_stacktrace=1
	cmake -DENABLE_GUI=OFF -B build -S .
	cmake --build build
	cmake --build build --target check
	cmake --install build

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