Remove unused import #357

	name: Test Backend
	on: [push]
	# Cancel inprogress runs if new commit pushed
	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true
	jobs:
	test:
	runs-on: [self-hosted, linux, large]
	defaults:
	run:
	working-directory: backend
	services:
	postgres:
	image: postgres:15.2
	env:
	POSTGRES_PASSWORD: password
	ports:
	- 5432:5432
	options: >-
	--health-cmd pg_isready
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5
	steps:
	- uses: actions/checkout@v3
	- uses: actions/setup-python@v4
	with:
	python-version: "3.10"
	- uses: Gr1N/setup-poetry@v8
	with:
	poetry-version: "1.5.1"
	- run: poetry install
	- run: poetry run black --check test_observer tests migrations scripts
	- run: poetry run ruff test_observer tests migrations scripts
	- run: poetry run mypy --explicit-package-bases test_observer tests migrations scripts
	- run: poetry run pytest
	env:
	TEST_DB_URL: postgresql+pg8000://postgres:password@localhost:5432/postgres
	- run: poetry run alembic upgrade head
	env:
	DB_URL: postgresql+pg8000://postgres:password@localhost:5432/postgres
	- name: Check if alembic migrations are up to date
	run: poetry run alembic check
	env:
	DB_URL: postgresql+pg8000://postgres:password@localhost:5432/postgres

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