fix: use MutableMapping for headers parameter in make_request #476

	name: CI

	on: [push,pull_request,workflow_dispatch]

	jobs:
	build:
	strategy:
	matrix:
	runs-on: [ubuntu-22.04, ubuntu-24.04, ubuntu-latest, macOS-latest]
	python-version: ['3.10', '3.11', '3.12', '3.13']
	fail-fast: false

	runs-on: ${{ matrix.runs-on }}

	env:
	AWS_ACCESS_KEY_ID: MOCK_AWS_ACCESS_KEY_ID
	AWS_SECRET_ACCESS_KEY: MOCK_AWS_SECRET_ACCESS_KEY
	AWS_SESSION_TOKEN: MOCK_AWS_SESSION_TOKEN

	steps:
	- uses: actions/checkout@v6
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v6
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements.txt
	pip install -r requirements-test.txt
	pip install pytest
	# - name: Lint with flake8
	# run: \|
	# pip install flake8
	# # stop the build if there are Python syntax errors or undefined names
	# flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
	# # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
	# flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
	- name: Check with pycodestyle
	run: \|
	pycodestyle -v awscurl
	- name: Check with mypy
	run: \|
	mypy awscurl/ tests/
	- name: Test with pytest
	run: \|
	python --version
	pytest -v --cov=awscurl --cov-fail-under=77 --cov-report html

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