remove dependabot

.github/dependabot.yml

@@ -1,18 +0,0 @@
-version: 2
-updates:
-  - package-ecosystem: npm
-    directory: "/"
-    schedule:
-      interval: weekly
-      day: monday
-      time: "03:00"
-    open-pull-requests-limit: 10
-    versioning-strategy: increase
-  - package-ecosystem: bundler
-    directory: "/docs/"
-    schedule:
-      interval: weekly
-      day: monday
-      time: "03:00"
-    open-pull-requests-limit: 10
-    versioning-strategy: increase