remove github zulip integeration, using rss zapier

Author: timothypratley

.github/workflows/render-and-publish.yml

@@ -53,14 +53,3 @@ jobs:
           path: site
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Send a Zulip stream message
-        uses: zulip/github-actions-zulip/send-message@v1
-        with:
-          api-key: ${{ secrets.ZULIP_API_KEY }}
-          email: "timothypratley@example.com"
-          organization-url: "https://org.zulipchat.com"
-          to: "150792"
-          type: "stream"
-          topic: "ClojureCivitas new posts"
-          content: "New update https://clojurecivitas.github.io/"