[6.5]retry as stale reads and remove back off for server busy errors … #5144

	name: Unit Test

	on:
	push:
	branches: [ master, tidb-6.5, tidb-6.5-with-kv-timeout-feature ]
	pull_request:
	branches: [ master, tidb-6.5, tidb-6.5-with-kv-timeout-feature ]

	jobs:
	test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

	- name: Set up Go
	uses: actions/setup-go@v2
	with:
	go-version: 1.18

	- name: Test
	run: go test ./...

	race-test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

	- name: Set up Go
	uses: actions/setup-go@v2
	with:
	go-version: 1.18

	- name: Test with race
	run: go test -race ./...

	golangci:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v2

	- name: Set up Go
	uses: actions/setup-go@v2
	with:
	go-version: 1.18

	- name: Lint
	uses: golangci/[email protected]
	with:
	version: v1.47.3

Provide feedback