Add BCR workflow for Bazel Central Registry publishing #117

	name: Ubuntu RISC-V rvv VLEN=128 (clang 17)

	on: [push, pull_request]

	jobs:
	build:
	runs-on: ubuntu-24.04
	steps:
	- uses: actions/checkout@v5
	- name: Install packages
	run: \|
	sudo apt-get update -q -y
	sudo apt-get install -y cmake make g++-riscv64-linux-gnu qemu-user-static clang-17
	- name: Build
	run: \|
	CXX=clang++-17 CXXFLAGS="--target=riscv64-linux-gnu -march=rv64gcv" \
	cmake --toolchain=cmake/toolchains-ci/riscv64-linux-gnu.cmake -DCMAKE_BUILD_TYPE=Release -B build
	cmake --build build/ -j$(nproc)
	- name: Test VLEN=128
	run: \|
	export QEMU_LD_PREFIX="/usr/riscv64-linux-gnu"
	export QEMU_CPU="rv64,v=on,vlen=128,rvv_ta_all_1s=on,rvv_ma_all_1s=on"
	ctest --timeout 1800 --output-on-failure --test-dir build -j $(nproc)

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