github_actions: monthly check for broken hyperlinks (#7537)

Signed-off-by: sspaink <[email protected]>

Author: sspaink

.github/workflows/link_checker.yaml

@@ -0,0 +1,30 @@
+name: "Check Broken Links"
+
+on:
+  repository_dispatch:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 0 1 * *" # At 00:00 on day-of-month 1
+
+jobs:
+  linkChecker:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write # required for peter-evans/create-issue-from-file
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Link Checker
+        id: lychee
+        uses: lycheeverse/lychee-action@v2
+        with:
+          args: --max-concurrency 1 --no-progress --exclude-path vendor --exclude-path CHANGELOG.md --scheme https --scheme http --accept 200..=206,403,429  .
+          fail: false
+
+      - name: Create Issue From File
+        if: steps.lychee.outputs.exit_code != 0
+        uses: peter-evans/create-issue-from-file@v5
+        with:
+          title: Link Checker Report
+          content-filepath: ./lychee/out.md
+          labels: report, automated issue