dcrdtest: avoid concurrent exec.Cmd.Wait calls #69

	name: Build and Test
	on: [push, pull_request]
	permissions:
	contents: read

	jobs:
	build:
	name: Go CI
	strategy:
	matrix:
	go: ["1.21", "1.22"]
	os: [ubuntu-latest, macos-latest, windows-latest]
	runs-on: ${{ matrix.os }}
	steps:
	# Prepare env.
	- name: Set up Go
	uses: actions/setup-go@0c52d547c9bc32b1aa3301fd7a9cb496313a4491 #v5.0.0
	with:
	go-version: ${{ matrix.go }}
	- name: Install Linters
	run: "curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh \| sh -s -- -b $(go env GOPATH)/bin v1.57.2"
	shell: bash
	- name: Set git config to please linters
	run: \|
	git config --global core.autocrlf false
	git config --global core.eol lf

	# Test repository.
	- name: Check out source
	uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 #v4.1.1
	- name: Test
	run: sh ./run_tests.sh

Provide feedback