ci/codeql: enable for rust and actions

Author: jasonish

.github/workflows/codeql.yml

@@ -35,7 +35,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        language: [ 'cpp' ]
+        language: [ 'cpp', 'rust', 'actions' ]
         # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby' ]
     steps:
     - name: Checkout repository