feat(kustomize): add github-webhook-server overlay (#1198)

* feat(kustomize): add github-webhook-server overlay

* chore(kustomize): add image to github-webhook-server overlay

* feat(kustomize): drop sync-period

config/github-webhook-server/deployment.yaml

@@ -0,0 +1,37 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app.kubernetes.io/component: github-webhook-server
+    app.kubernetes.io/part-of: actions-runner-controller
+  name: github-webhook-server
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/component: github-webhook-server
+      app.kubernetes.io/part-of: actions-runner-controller
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/component: github-webhook-server
+        app.kubernetes.io/part-of: actions-runner-controller
+    spec:
+      containers:
+        - name: github-webhook-server
+          image: controller:latest
+          command:
+            - '/github-webhook-server'
+          env:
+            - name: GITHUB_WEBHOOK_SECRET_TOKEN
+              valueFrom:
+                secretKeyRef:
+                  key: github_webhook_secret_token
+                  name: github-webhook-server
+                  optional: true
+          ports:
+            - containerPort: 8000
+              name: http
+              protocol: TCP
+      serviceAccountName: github-webhook-server
+      terminationGracePeriodSeconds: 10