[fix] 1,修复读写并发问题 2，修复search查询出错不返回err 3，解除健康检查对etcd的依赖 4，golang-lint问题修复 #578

	name: Merge check
	on: [push, pull_request]
	jobs:
	mongo-storage:
	runs-on: ubuntu-latest
	steps:
	- name: Set up Go
	uses: actions/setup-go@v1
	with:
	go-version: 1.18
	id: go
	- name: Check out code into the Go module directory
	uses: actions/checkout@v1
	- name: UT
	run: \|
	sudo docker-compose -f ./examples/dev/docker-compose.yaml up -d
	sleep 20
	export TEST_DB_KIND=mongo
	export TEST_DB_URI=mongodb://kie:[email protected]:27017/servicecomb
	time go test -v $(go list ./... \| grep -v etcd \| grep -v third_party \| grep -v examples)
	- name: Build kie images
	run: \|
	cd build
	time bash build_docker.sh

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