Update codeql.yml

Signed-off-by: Adam Warner <me@adamwarner.co.uk>

.github/workflows/codeql.yml

@@ -1,22 +1,32 @@
-name: "Code Scanning - Action"
+name: "CodeQL"
 
 on:
   push:
+    branches:
+      - master
+      - devel
+      - "!dependabot/**"
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches:
+      - master
+      - devel
   schedule:
     - cron: "0 0 * * 0"
 
 jobs:
-  CodeQL-Build:
+  analyze:
+    name: Analyze
     runs-on: ubuntu-latest
 
     steps:
       - name: Checkout repository
         uses: actions/checkout@v2
-
+      # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v1
         with:
-          languages: javascript
+          languages: "javascript"
 
       - name: Autobuild
         uses: github/codeql-action/autobuild@v1