Create codeql-analysis.yml

This pull request enables [GitHub Advanced Security](https://docs.github.com/en/get-started/learning-about-github/about-github-advanced-security), but most importantly, enables [CodeQL](https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/about-code-scanning-with-codeql) on your repository. 

The purpose of this issue is:

1) Give you some context as to why this pull request was created.
2) Provide you with some links to help you understand what CodeQL and GitHub Advanced Security are.
3) Help you with some automated entries instead of doing this manually. 

As a company, we are moving towards CodeQL for our static analysis tool. We didn't want to go and raise a pull request for every repository manually, and we didn't expect you to have to go and manually create a pull request for every single repositor either. So here is a pull request for you to review and hopefully approve!

We are rolling out CodeQL per language/user, so if you have only got a pull request for a few of your repositories, not to worry, more will come soon. 

Hopefully, you should see a nice green status tick next to CodeQL within the status section of the pull request. However, if you haven't, that's understandable. We have taken the best guess approach at configuring CodeQL for you, but 1) we are still maturing, and 2) codeql can differ repository by repository. 

If you have a red X next to CodeQL, that means that CodeQL is not configured for your repository. You may need to go ahead and edit the codeql-analysis.yml file to get it working with your build process/codebase. Some information on that can be found below:

1) [Complied Languages with CodeQL](https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-the-codeql-workflow-for-compiled-languages)
2) [Configuring Code Scanning](https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning).

If you need any more assistance, please don't hesitate to contact the Application Security team. We are here to help. 

Thanks!
- Application Security :) 
  Shane.Green@treasure-data.com

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,71 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [master]
+  schedule:
+    - cron: "15 3 * * 1"
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: ["ruby"]
+        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby' ]
+        # Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      # Initializes the CodeQL tools for scanning.
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v2
+        with:
+          languages: ${{ matrix.language }}
+          # If you wish to specify custom queries, you can do so here or in a config file.
+          # By default, queries listed here will override any specified in a config file.
+          # Prefix the list here with "+" to use these queries and those in the config file.
+
+          # Details on CodeQL's query packs refer to : https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
+          # queries: security-extended,security-and-quality
+
+      # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+      # If this step fails, then you should remove it and run the build manually (see below)
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@v2
+
+      # ℹ️ Command-line programs to run using the OS shell.
+      # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
+
+      #   If the Autobuild fails above, remove it and uncomment the following three lines.
+      #   modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
+
+      # - run: |
+      #   echo "Run, Build Application using script"
+      #   ./location_of_script_within_repo/buildscript.sh
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v2