Fix multiple header writes for connect unary on error #1650

	name: windows
	on:
	push:
	branches: [main]
	tags: ['v*']
	pull_request:
	branches: [main]
	schedule:
	- cron: '15 22 * * *'
	workflow_dispatch: {} # support manual runs
	permissions:
	contents: read
	jobs:
	ci:
	runs-on: windows-latest
	strategy:
	matrix:
	go-version: [1.20.x, 1.21.x, 1.22.x]
	steps:
	- name: Checkout Code
	uses: actions/checkout@v4
	with:
	fetch-depth: 1
	- name: Install Go
	uses: actions/setup-go@v5
	with:
	go-version: ${{ matrix.go-version }}
	- name: Test
	shell: bash
	run: \|
	go build ./...
	go test -vet=off -race ./...

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