Enhance `find_outliers` and `identify_outliers` performance by avoiding duplication and filtering columns #234

	---
	# used for running tests
	name: tests

	on:
	push:
	branches: [main]
	pull_request:
	branches: [main]

	jobs:
	pre_commit_checks:
	runs-on: ubuntu-22.04
	steps:
	# checks out the repo
	- uses: actions/checkout@v4
	with:
	# fetch tags for versioning details
	fetch-depth: 0
	- name: Fetch tags
	run: git fetch --all --tags
	# run pre-commit
	- name: Python setup
	uses: actions/setup-python@v5
	with:
	python-version: "3.11"
	- name: Setup for poetry
	run: \|
	python -m pip install poetry
	poetry self add "poetry-dynamic-versioning[plugin]"
	- name: Install environment
	run: poetry install --no-interaction --no-ansi
	- uses: pre-commit/[email protected]
	run_tests:
	strategy:
	matrix:
	python_version: ["3.9", "3.10", "3.11", "3.12"]
	os: [ubuntu-22.04, macos-13]
	runs-on: ${{ matrix.os }}
	env:
	OS: ${{ matrix.os }}
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	# fetch tags for versioning details
	fetch-depth: 0
	- name: Fetch tags
	run: git fetch --all --tags
	- name: Python setup
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python_version }}
	- name: Setup for poetry
	run: \|
	python -m pip install poetry
	poetry self add "poetry-dynamic-versioning[plugin]"
	- name: Install environment
	run: poetry install --no-interaction --no-ansi
	- name: Run pytest
	# run all tests except those marked generate_report_image
	run: poetry run pytest -m "not generate_report_image"

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