Update signature placeholder link #199

	name: Build MacOS (x86_64)
	on:
	push:
	branches: [ "main" ]
	pull_request:
	branches: [ "main" ]
	concurrency:
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.ref }}
	cancel-in-progress: true
	jobs:
	build:
	runs-on: macos-latest
	steps:
	- name: Git Checkout
	uses: actions/checkout@v3
	- name: Set up JDK 17
	uses: actions/setup-java@v3
	with:
	java-version: '17'
	distribution: 'adopt'
	cache: maven
	- name: Build with Maven
	run: mvn -B clean install -Pmac -Pci-build -Dno-native-profile
	- name: Describe current commit
	run: echo "commit_sha=${GITHUB_SHA::7}" >> $GITHUB_ENV
	- name: Remove Previous Build Artifacts
	uses: actions/github-script@v6
	with:
	script: \|
	const { owner, repo } = context.issue;
	(await github.rest.actions.listArtifactsForRepo({ owner, repo })).data.artifacts
	.filter(({ name }) => (name.startsWith('pdf-over-${{ github.event.pull_request.number \|\| github.ref_name }}-') && name.endsWith('macos-x86_64')))
	.forEach(({ id, name }) => { console.log('Deleting '+name+' ('+id+')'); github.rest.actions.deleteArtifact({ owner, repo, artifact_id: id }); });
	- name: Set executable permissions
	run: chmod +x pdf-over-build/.sh pdf-over-build/jre/bin/
	- name: Tar bundle
	run: tar -C pdf-over-build -cvf pdf-over.tar ./
	- name: Upload Build Artifacts
	uses: actions/upload-artifact@v3
	with:
	name: pdf-over-${{ github.event.pull_request.number \|\| github.ref_name }}-${{ env.commit_sha }}-macos-x86_64
	path: pdf-over.tar

	permissions:
	contents: read
	actions: write

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