Update tracking CI, add new CI action for LTO and modify other actions to use just #259

	name: Apply clang-format
	on:
	push:
	branches:
	- 'trunk'
	pull_request:

	jobs:
	clang-format:
	runs-on: ubuntu-latest
	steps:
	- name: Install just
	uses: extractions/setup-just@v2
	with:
	just-version: 1.26.0

	- uses: actions/checkout@v4

	- name: Pull latest changes
	run: \|
	git fetch origin ${GITHUB_HEAD_REF}
	git checkout ${GITHUB_HEAD_REF}
	git pull origin ${GITHUB_HEAD_REF}

	- name: Run format check on the C++
	run: just install-denv init format-cpp

	- name: Set up git user as the bot
	run: \|
	git config user.name 'github-actions[bot]'
	git config user.email 'github-actions[bot]@users.noreply.github.com'

	- name: Auto-commit the changes
	run: \|
	git add .
	git commit -m "Apply clang-format" \|\| echo "No changes to commit"
	id: commit

	- name: Push changes
	if: steps.commit.outcome == 'success'
	run: \|
	git push origin HEAD:${GITHUB_HEAD_REF}

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