github: add discord webhook into workflow

Author: colin969

.github/workflows/nexus.yml

@@ -112,4 +112,12 @@ jobs:
         coordinates: directory=/
         assets: filename=components.xml
         filename: ./nexus/components.xml
+  - name: Discord Webhook Action
+    uses: tsickert/[email protected]
+    with:
+      webhook-url: ${{ secrets.WEBHOOK_URL }}
+      embed-title: Launcher Dev build deployed
+      embed-url: "${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+      embed-description: "${{ github.event.head_commit.message }}"
+      embed-thumbnail-url: "https://github.com/FlashpointProject/launcher/blob/master/icons/icon.png?raw=true"