ziptools.py: add unencrypted_chunks() & passwd_cb, fix pk_decrypt() F… #290

	name: CI
	on: [push, pull_request, workflow_dispatch]
	jobs:
	build:
	runs-on: ubuntu-22.04
	strategy:
	matrix:
	python-version:
	- '3.8'
	- '3.9'
	- '3.10'
	- '3.11'
	- '3.12'
	- '3.13'
	# - '3.14.0-alpha - 3.14'
	- pypy3.8
	- pypy3.9
	- pypy3.10
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0
	persist-credentials: false
	submodules: true
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install -y aapt dos2unix zipalign
	python3 -m pip install --upgrade pip
	python3 -m pip install flake8 pylint mypy coverage
	- name: Install
	run: make install
	- name: Test
	run: make test
	- name: Test examples
	run: make test-examples
	- name: Test coverage
	run: make coverage
	- name: Download build-tools
	run: \|
	set -x
	wget -O build-tools.zip -- https://dl.google.com/android/repository/build-tools_r35_linux.zip
	sha256sum -c <<< 'bd3a4966912eb8b30ed0d00b0cda6b6543b949d5ffe00bea54c04c81e1561d88 build-tools.zip'
	unzip -q build-tools.zip
	mv android-15 build-tools
	- name: Test (build-tools)
	run: \|
	export PATH="${PWD}/build-tools:${PATH}"
	test "$( command -v zipalign )" = "${PWD}/build-tools/zipalign"
	make test
	- name: Test examples (build-tools)
	run: \|
	export PATH="${PWD}/build-tools:${PATH}"
	test "$( command -v zipalign )" = "${PWD}/build-tools/zipalign"
	make test-examples

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