ci: Remove weekly npm update to Dependabot (#5056)

Author: Flash0ver

.github/dependabot.yml

@@ -25,8 +25,3 @@ updates:
   ignore:
   - dependency-name: "gradle/actions/setup-gradle"
     versions: ['>= 6.0.0'] # license change: the bundled 'gradle-actions-caching' component is licensed and governed by a separate license (no longer MIT)
-
-- package-ecosystem: "npm"
-  directory: "/"
-  schedule:
-    interval: "weekly"