fix(core): make aggregate functions and window functions support zero argument #48

	name: Core Python CI

	on:
	pull_request:
	paths:
	- 'wren-core-py/**'
	- 'wren-core/**'

	defaults:
	run:
	working-directory: wren-core-py

	concurrency:
	group: ${{ github.workflow }}-${{ github.event.number }}
	cancel-in-progress: true

	jobs:
	test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-python@v5
	with:
	python-version: 3.11
	- name: Cache Cargo
	uses: actions/cache@v4
	with:
	path: \|
	~/.cargo/bin/
	~/.cargo/registry/index/
	~/.cargo/registry/cache/
	~/.cargo/git/db/
	./wren-core-py/target/
	key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
	- name: Install poetry
	run: pipx install poetry
	- name: Install dependencies
	run: poetry install --no-root
	- name: Test Rust and Python code
	run: \|
	cargo test
	poetry run maturin develop
	poetry run pytest

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