chore: only run the CI on main, and with slim runners

Author: aduh95

.github/workflows/ci.yml

@@ -1,8 +1,8 @@
 name: CI
 on:
   push:
-    branches-ignore:
-      - dependabot/**
+    branches:
+      - main
     paths:
       - package*.json
       - '**/*.md'
@@ -18,7 +18,7 @@ on:
 
 jobs:
   lint:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
 
     steps:
       - name: Clone repository