feat(updater): add `Builder::header` and `Builder::headers` #5637

	# Copyright 2019-2023 Tauri Programme within The Commons Conservancy
	# SPDX-License-Identifier: Apache-2.0
	# SPDX-License-Identifier: MIT

	name: covector status
	on: [pull_request]

	jobs:
	covector:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0 # required for use of git history
	- name: covector status
	uses: jbolda/covector/packages/action@covector-v0
	id: covector
	with:
	command: 'status'
	token: ${{ secrets.GITHUB_TOKEN }}
	comment: true

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