Moved study period source from core #126

	name: CI
	on: [push]
	jobs:
	unittest:
	name: unit tests
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: "3.10"

	lint:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install linters
	run: \|
	python -m pip install --upgrade pip
	pip install ".[dev]"
	- name: Run sqlfluff on jinja templates
	run: \|
	sqlfluff lint
	- name: Run black
	if: success() \|\| failure() # still run black if above checks fails
	run: \|
	black --check --verbose .

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