move var to secrets and remove debug

.gitea/workflows/build.yml

@@ -26,22 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: build
     steps:
-      - name: create payload var
-        run: |
-          PAYLOAD=$(cat << EOF
-          payload={
-            \"username\": \"gitea-bot\",
-            \"icon_url\": \"https://icinga.com/wp-content/uploads/2017/08/icon-core.png\",
-            \"text\": \"mkdocs build has just finished !\"
-          }
-          EOF
-          )
-        id: my_payload
-      - name: debug
-        run: |
-          echo "${{ vars.PAYLOAD }}"
-          echo "${{ vars.WEBHOOK_URL }}"
       - name: curl webhook
         run: |
-          curl --connect-timeout 30 --max-time 60 -s -S -X POST --data-urlencode "${{ vars.PAYLOAD }}" "${{ vars.WEBHOOK_URL }}"
+          curl --connect-timeout 30 --max-time 60 -s -S -X POST --data-urlencode "${{ vars.PAYLOAD }}" "${{ secrets.WEBHOOK_URL }}"