ci: add codeql checker (#14)

Signed-off-by: Patrick Zheng <[email protected]>

.github/workflows/codeql.yml

@@ -0,0 +1,26 @@
+# Copyright The Notary Project Authors.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: "CodeQL"
+
+on:
+  push:
+    branches: main
+  pull_request:
+    branches: main
+  schedule:
+    - cron: '35 13 * * 5'
+
+jobs:
+  analyze:
+    uses: notaryproject/notation-core-go/.github/workflows/reusable-codeql.yml@main