Update changelog and bump version for v4.2 release #2

	name: Container Claus

	on:
	push:
	branches:
	- 'master'
	tags:
	- 'v[0-9]+.[0-9]+*'

	jobs:
	docker:
	runs-on: ubuntu-latest
	permissions:
	packages: write
	contents: read
	env:
	MAKEFLAGS: -j3
	IMAGE_NAME: adventure
	steps:
	- uses: actions/checkout@v3
	- name: Build image
	run: docker build . --file Dockerfile --tag $IMAGE_NAME --label "runnumber=${GITHUB_RUN_ID}"
	- name: Log in to registry
	run: echo "${{ secrets.GITHUB_TOKEN }}" \| docker login ghcr.io -u ${{ github.actor }} --password-stdin
	- name: Push image
	run: \|
	IMAGE_ID=ghcr.io/${{ github.repository_owner }}/$IMAGE_NAME
	# Change all uppercase to lowercase
	IMAGE_ID=$(echo $IMAGE_ID \| tr '[A-Z]' '[a-z]')
	# Strip git ref prefix from version
	VERSION=$(echo "${{ github.ref }}" \| sed -e 's,./$.$,\1,')
	# Use Docker `latest` tag convention
	[ "$VERSION" == "master" ] && VERSION=latest
	echo IMAGE_ID=$IMAGE_ID
	echo VERSION=$VERSION
	docker tag $IMAGE_NAME $IMAGE_ID:$VERSION
	docker push $IMAGE_ID:$VERSION

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