added github actions

.github/workflows/scrna-galaxyhelp-matrix.yml

@@ -0,0 +1,32 @@
+name: "[Cron] Send Single-cell Galaxy Help Topics to Matrix CoP Room"
+
+on:
+  schedule:
+    # * is a special character in YAML so you have to quote this string
+    # We'll run this every monday at noon
+    - cron:  '0 12 * * 1'
+  workflow_dispatch:
+
+jobs:
+  runner-job:
+    if: github.repository_owner == 'galaxyproject'
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      # BEGIN Dependencies
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y coreutils curl libxml2-utils gawk sed grep jq wget
+      # END Dependencies
+
+      - name: Send announcements to single-cell matrix for unanswered posts
+        run: |
+            wget https://raw.githubusercontent.com/galaxyproject/training-material/main/bin/galaxy-help-news.sh
+            MATRIX_ACCESS_TOKEN="${MATRIX_ACCESS_TOKEN}" HTML_TYPE="bullets" MAX_REPLIES="0" WANTED_TAGS="scrna scrna-seq" ROOM_ID='!TJRLNvfcbWbSRoUNpl:matrix.org' bash ./galaxy-help-news.sh
+        env:
+            MATRIX_ACCESS_TOKEN: ${{ secrets.matrix_access_token }}