Create v0.39.0 RC branch. #10142

	name: Formatting check
	on:
	pull_request:
	push:
	branches:
	- master

	concurrency:
	group: format-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	format-python:
	name: Format (Python)
	runs-on: ubuntu-22.04
	steps:
	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.12'

	- name: Checkout PennyLane-Lightning
	uses: actions/checkout@v4

	- name: Install dependencies
	run:
	python -m pip install -r requirements.txt

	- name: Run isort & black --check
	run: make format-python check=1 verbose=1

	format-cpp:
	name: Format (C++)
	runs-on: ubuntu-22.04

	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Install dependencies
	run: sudo apt update && sudo apt -y install python3 python3-pip python-is-python3 && python -m pip install -r requirements.txt

	- name: Run formatter
	run: PATH=$PATH:/home/ubuntu/.local/bin/:$(dirname $(which python3))/ ./bin/format --check ./pennylane_lightning/core/src

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