CI: Add services check job

.github/workflows/services-json.yml

@@ -9,6 +9,9 @@ on:
     paths:
       - "plugins/rtmp-services/data/services.json"
       - "plugins/rtmp-services/data/package.json"
+  schedule:
+  - cron: 0 0 * * *
+  workflow_dispatch:
 
 jobs:
   schema:
@@ -38,3 +41,57 @@ jobs:
           repo-token: "${{ secrets.GITHUB_TOKEN }}"
           title: "Service JSON Errors"
           input: "./validation_errors.json"
+
+  service_check:
+    name: Service Check
+    runs-on: ubuntu-20.04
+    needs: schema
+    if: ${{ github.repository_owner == 'obsproject' && (github.event_name == 'schedule' || github.event_name == 'workflow_dispatch') }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Restore cache
+        uses: actions/cache@v3
+        with:
+          path: ${{ github.workspace }}/other
+          key: service-check
+
+      - name: Install & Configure Python
+        run: |
+          sudo apt install python3.9
+          python3.9 -m pip install requests
+
+      - name: Check Services
+        id: check
+        run: |
+           python3.9 -u CI/check-services.py
+           # if there are changes, run the PR step
+           if ! git diff --quiet; then
+             echo "::set-output name=make_pr::true"
+           else
+             echo "::set-output name=make_pr::false"
+           fi
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          WORKFLOW_RUN_ID: ${{ github.run_id }}
+          REPOSITORY: ${{ github.repository }}
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: timestamps
+          path: ${{ github.workspace }}/other/*
+
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@f094b77505fb89581e68a1163fbd2fffece39da1
+        if: steps.check.outputs.make_pr == 'true'
+        with:
+          author: "Service Checker <commits@obsproject.com>"
+          commit-message: "rtmp-services: Remove defunct servers/services"
+          title: "rtmp-services: Remove defunct servers/services"
+          branch: "automated/clean-services"
+          body: "Automatic PR to remove dead servers\nCreated by workflow run: https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+          delete-branch: true