refactor(scripts): rename prepare-release.sh to prepare-github-releas… #579

	name: Build Docker Rust Launcher Image

	# cancel-in-progress is false to avoid orphaning blobs mid-push; see RELEASES.md.
	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: false

	on:
	push:
	branches:
	- main
	- 'release/v*'
	workflow_dispatch:

	jobs:
	build-and-push-images:
	name: "Build and push Rust launcher Docker image with commit hash"
	runs-on: warp-ubuntu-2404-x64-8x
	environment: production
	permissions:
	contents: read

	steps:
	- name: Checkout repository
	uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
	with:
	persist-credentials: false

	- name: Allow unprivileged user namespaces (needed by repro-env/podman on Ubuntu 24.04)
	run: sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0

	- name: Install build dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install -y skopeo liblzma-dev podman

	- name: Install repro-env
	run: \|
	wget 'https://github.com/kpcyrd/repro-env/releases/download/v0.4.3/repro-env'
	echo '2a00b21ac5e990e0c6a0ccbf3b91e34a073660d1f4553b5f3cda2b09cc4d4d8a repro-env' \| sha256sum -c -
	sudo install -m755 repro-env -t /usr/bin

	- name: Login to Docker Hub
	uses: docker/login-action@4907a6ddec9925e35a0a9e82d7399ccc52663121 # v4.1.0
	with:
	username: ${{ secrets.DOCKERHUB_USER }}
	password: ${{ secrets.DOCKERHUB_PAT }}

	- name: Build and push Rust launcher image
	run: \|
	export RUST_LAUNCHER_IMAGE_NAME=mpc-launcher
	./deployment/build-images.sh --rust-launcher --push

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