Migrated docs webhook to GHA (#37114)

* Migrated docs webhook to GHA

* reverted accidental e change

* revert accidental actionbuttons change

* fix attempt

.drone.yml

@@ -1,32 +1,4 @@
 ---
-kind: pipeline
-type: kubernetes
-name: update-docs-webhook
-
-trigger:
-  event:
-    include:
-      - push
-    exclude:
-      - pull_request
-  branch:
-    include:
-      - master
-      - branch/*
-  repo:
-    include:
-      - gravitational/teleport
-
-clone:
-  disable: true
-
-steps:
-  - name: Trigger docs deployment
-    image: plugins/webhook
-    settings:
-      urls:
-        from_secret: DOCS_DEPLOY_HOOK
----
 ################################################
 # Generated using dronegen, do not edit by hand!
 # Use 'make dronegen' to update.
@@ -5535,6 +5507,6 @@ image_pull_secrets:
 - DOCKERHUB_CREDENTIALS
 ---
 kind: signature
-hmac: 1201ae30cc439265cf33baf9b9e4d964fda6cd8197989b4930a308325c2b16b3
+hmac: 9b1631ac46ce1c77ec3fbb4c6d83a243d5cf1a26b34b67dc5e561c064fcdf0fd
 
 ...

.github/workflows/update-docs-webhook.yaml

@@ -0,0 +1,21 @@
+name: Update docs webhook
+on:
+  push:
+    branches:
+      - master
+      - branch/v*
+  workflow_dispatch:
+
+jobs:
+  update-webhook:
+    name: Update docs webhook
+    runs-on: ubuntu-latest
+    environment: update-docs
+    steps:
+      - name: Call deployment webhook
+        env:
+          WEBHOOK_URL: ${{ secrets.DOCS_DEPLOY_HOOK }}
+        run: |
+          if curl --silent --fail --show-error "$WEBHOOK_URL" > /dev/null; then
+            echo "Triggered successfully"
+          fi