Add github action to run e2e test with kubernetes cluster. #1986

	name: Validation

	on:
	workflow_dispatch: {}
	pull_request:
	types: [opened, synchronize, reopened]
	schedule:
	- cron: "00 00 * * 1"

	jobs:
	validation:
	name: Validation
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: recursive

	- name: Configure sccache
	uses: actions/github-script@v6
	with:
	script: \|
	core.exportVariable('ACTIONS_CACHE_URL', process.env.ACTIONS_CACHE_URL \|\| '');
	core.exportVariable('ACTIONS_RUNTIME_TOKEN', process.env.ACTIONS_RUNTIME_TOKEN \|\| '');

	- name: Build xline
	run: \|
	docker run -q --rm -v $(pwd):/xline \
	-e SCCACHE_GHA_ENABLED=on \
	-e ACTIONS_CACHE_URL=${ACTIONS_CACHE_URL} \
	-e ACTIONS_RUNTIME_TOKEN=${ACTIONS_RUNTIME_TOKEN} \
	ghcr.io/xline-kv/build-env:latest \
	cargo build --release --bin xline --bin benchmark --bin validation_lock_client

	- run: \|
	sudo apt-get install -y --force-yes expect
	cd scripts
	cp ../target/release/{xline,benchmark,validation_lock_client} .
	ldd ./xline
	ldd ./benchmark
	cp ../fixtures/{private,public}.pem .
	docker build . -t ghcr.io/xline-kv/xline:latest
	docker pull gcr.io/etcd-development/etcd:v3.5.5
	bash ./validation_test.sh
	- name: upload logs
	if: failure() \|\| cancelled()
	uses: actions/upload-artifact@v1
	with:
	name: Xline logs
	path: scripts/logs

Provide feedback