add String() method to Response for logging purposes #42

	# This workflow will build a golang project
	# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go

	name: Go

	on:
	push:
	branches: [ "main" ]
	pull_request:
	branches: [ "main" ]

	jobs:

	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: Set up Go
	uses: actions/setup-go@v3
	with:
	go-version: 1.19

	- name: Build
	run: go build -v ./...

	- name: Test
	run: go test -v -coverprofile=profile.cov ./...

	- name: Send to Coveralls
	uses: shogo82148/actions-goveralls@v1
	with:
	path-to-profile: profile.cov

	- name: Install Postfix
	run: sudo -n -- apt-get update -q && sudo -n -- apt-get install -y postfix sasl2-bin libsasl2-2 libsasl2-modules ssl-cert cpio courier-authlib

	- name: Integration Test
	run: cd integration && SKIP_POSTFIX_AUTH=1 go run github.com/d--j/go-milter/integration/runner ./tests

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