add apache license check workflow

Author: cjcchen

.github/workflows/license.yml

@@ -0,0 +1,12 @@
+name: Check Apache License
+
+on:
+  push
+
+jobs:
+  ubuntu-build:
+    name: check license
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check License Header
+        uses: apache/skywalking-eyes/header@main

.licenserc.yaml

@@ -0,0 +1,14 @@
+header:
+  license:
+    spdx-id: Apache-2.0
+    copyright-owner: Apache Software Foundation
+
+  paths-ignore:
+    - 'dist'
+    - 'licenses'
+    - '**/*.md'
+    - 'LICENSE'
+    - 'NOTICE'
+
+  comment: on-failure
+