Add pandas 3 compatibility for string dtype handling #605

	name: CI

	on:
	push:
	branches:
	- master
	pull_request:
	types: [opened, synchronize, reopened]

	concurrency:
	# Cancel older runs for the same PR/branch when new commits arrive.
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	code_quality:
	name: Code Quality
	runs-on: ubuntu-latest
	timeout-minutes: 20
	steps:
	- name: Git checkout
	uses: actions/checkout@v6
	- name: Set up Python 3.12
	uses: actions/setup-python@v6
	with:
	python-version: "3.12"
	cache: pip
	cache-dependency-path: pyproject.toml # it would be better on a lock file
	- name: Install dev dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install '.[dev]'
	- name: Check linting
	run: make lint
	- name: Check formatting
	run: make format
	- name: Check type annotations
	run: make typecheck

	test:
	name: Build & Test
	needs: code_quality
	runs-on: ubuntu-latest
	timeout-minutes: 60
	strategy:
	fail-fast: false
	matrix:
	python-version: ["3.11", "3.12", "3.13", "3.14"]
	steps:
	- uses: actions/checkout@v6
	with:
	fetch-depth: 0 # required for setuptools-scm to read git tags
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v6
	with:
	python-version: ${{ matrix.python-version }}
	cache: pip
	cache-dependency-path: pyproject.toml
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install '.[all]'
	- name: Build python package
	run: \|
	python -m pip install --upgrade build
	python -m build
	- name: Test and coverage
	run: make coverage

Provide feedback