refactor(anvil): adopt cargo-each for scoped checks #1171

	# Copyright (c) Microsoft Corporation.
	# Licensed under the MIT License.
	#
	# Verifies that the in-tree state of cargo-anvil's emitted artifacts
	# matches what the binary built from this PR would render. The job:
	#
	# 1. Builds cargo-anvil from the PR branch.
	# 2. Runs `cargo anvil --dry-run` against the repo root.
	# 3. Fails iff the binary would change generated content or `.anvil.lock`.
	#
	# This is the primary dogfooding mechanism described in
	# crates/cargo-anvil/docs/verification.md.
	#
	# Adopters (the maintainers running `cargo anvil` after a
	# catalog change) are responsible for landing the regenerated files
	# alongside the catalog change in the same PR.
	name: regenerate-check

	on:
	pull_request: {}
	merge_group: {}
	workflow_dispatch: {}

	permissions:
	contents: read

	concurrency:
	group: regenerate-check-${{ github.head_ref \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	regenerate-check:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
	with:
	lfs: true
	- name: Build cargo-anvil
	run: cargo build --locked -p cargo-anvil
	- name: Verify in-tree state matches templates
	run: \|
	# Add target/debug to PATH so cargo finds the freshly built binary
	# as a cargo subcommand.
	export PATH="$PWD/target/debug:$PATH"
	if ! cargo anvil --dry-run ; then
	echo "::error::Repository anvil state is out of date." \
	"Run 'cargo run -p cargo-anvil -- anvil'" \
	"and commit the diff."
	exit 1
	fi

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