ci: update dependabot to work with bun

Author: sampaiodiego

.github/dependabot.yml

@@ -1,7 +1,7 @@
 version: 2
 updates:
-  # Main repo NPM package
-  - package-ecosystem: npm
+  # Main repo packages
+  - package-ecosystem: bun
     directory: '/'
     schedule:
       interval: daily
@@ -13,7 +13,7 @@ updates:
     schedule:
       interval: 'daily'
 
-  - package-ecosystem: npm
+  - package-ecosystem: bun
     directory: '/packages'
     schedule:
       interval: daily