meta: group github/codeql-action/* Dependabot updates (#875)

Author: MattIPv4

.github/dependabot.yml

@@ -16,6 +16,10 @@ updates:
       prefix: meta
     cooldown:
       default-days: 7
+    groups:
+      codeql:
+        patterns:
+          - 'github/codeql-action/*'
     open-pull-requests-limit: 10
 
   - package-ecosystem: npm