Merge pull request treasure-data#1417 from treasure-data/code-scanning

Add code scanning workflow

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,31 @@
+name: "Code scanning"
+
+on:
+  schedule:
+    # Friday 8AM UTC / Friday 5PM JST
+    - cron: '0 8 * * 5'
+
+jobs:
+  CodeQL-Build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ref: [master, v0_10]
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+      with:
+        ref: ${{ matrix.ref }}
+
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v1
+      with:
+        languages: java
+
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v1
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v1