Add search and report for broken links

Author: AB-xdev

.github/labels.yml

@@ -23,10 +23,13 @@
   description: "This doesn't seem right"
   color: '#e4e669'
 # Custom
+- name: automated
+  description: Created by a 🤖
+  color: '#000000'
 - name: "can't reproduce"
   color: '#e95f2c'
 - name: customer-requested
-  description: was requested by a customer of us
+  description: Was requested by a customer of us
   color: '#068374'
 - name: stale
   color: '#ededed'

.github/workflows/broken-links.yml

@@ -0,0 +1,41 @@
+name: Broken links
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "23 23 * * 0"
+
+permissions:
+  issues: write
+
+jobs:
+  link-checker:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Link Checker
+        id: lychee
+        uses: lycheeverse/lychee-action@v1
+
+      - name: Find already existing issue
+        id: find-issue
+        run: |
+          echo "number=$(gh issue list -l 'bug' -l 'automated' -L 1 -S 'in:title \"Link Checker Report\"' -s 'open' --json 'number' --jq '.[].number')" >> $GITHUB_OUTPUT
+        env:
+          GH_TOKEN: ${{ github.token }}
+          
+      - name: Close issue if everything is fine
+        if: env.lychee_exit_code == 0 && steps.find-issue.outputs.number != ''
+        run: gh issue close -r 'not planned' ${{ steps.find-issue.outputs.number }}
+        env:
+          GH_TOKEN: ${{ github.token }}
+
+      - name: Create Issue From File
+        if: env.lychee_exit_code != 0
+        uses: peter-evans/create-issue-from-file@v5
+        with:
+          issue-number: ${{ steps.find-issue.outputs.number }}
+          title: Link Checker Report
+          content-filepath: ./lychee/out.md
+          labels: bug, automated