Validate content type header parameter #593

	# GitHub Actions - CI for Go to build & test. See ci-go-cover.yml and linters.yml for code coverage and linters.
	# Taken from: https://github.com/fxamacker/cbor/workflows/ci.yml (thanks!)
	name: ci
	on: [push, pull_request]
	jobs:

	# Test on various OS with default Go version.
	tests:
	strategy:
	fail-fast: false
	matrix:
	go-version: [1.18, 1.19]
	runs-on: ubuntu-latest
	steps:
	- name: Install Go
	uses: actions/setup-go@v3
	with:
	go-version: ${{ matrix.go-version }}
	check-latest: true
	- name: Checkout code
	uses: actions/checkout@v3
	- name: Run tests
	run: go test -race -v -coverprofile=coverage.txt .
	- name: Upload coverage to codecov.io
	uses: codecov/codecov-action@v3

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