chore: remove dependabot

.github/dependabot.yml

@@ -1,81 +0,0 @@
-version: 2
-updates:
-  # Main app dependencies (most critical - daily updates)
-  - package-ecosystem: "npm"
-    directory: "/apps/sim"
-    schedule:
-      interval: "daily"
-    open-pull-requests-limit: 5
-    groups:
-      production-dependencies:
-        applies-to: version-updates
-        patterns:
-          - "*"
-        exclude-patterns:
-          - "@types/*"
-      security-updates:
-        applies-to: security-updates
-        patterns:
-          - "*"
-    labels:
-      - "dependencies"
-      - "sim-app"
-
-  # Documentation app dependencies (weekly updates)
-  - package-ecosystem: "npm"
-    directory: "/apps/docs"
-    schedule:
-      interval: "weekly"
-      day: "tuesday"
-    open-pull-requests-limit: 3
-    groups:
-      docs-dependencies:
-        applies-to: version-updates
-        patterns:
-          - "*"
-      docs-security:
-        applies-to: security-updates
-        patterns:
-          - "*"
-    labels:
-      - "dependencies"
-      - "docs"
-
-  # Root workspace dependencies (weekly updates)
-  - package-ecosystem: "npm"
-    directory: "/"
-    schedule:
-      interval: "weekly"
-      day: "wednesday"
-    open-pull-requests-limit: 3
-    groups:
-      workspace-dependencies:
-        applies-to: version-updates
-        patterns:
-          - "*"
-      workspace-security:
-        applies-to: security-updates
-        patterns:
-          - "*"
-    labels:
-      - "dependencies"
-      - "workspace"
-
-  # GitHub Actions (monthly updates)
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: "monthly"
-    open-pull-requests-limit: 2
-    groups:
-      actions-updates:
-        applies-to: version-updates
-        patterns:
-          - "*"
-      actions-security:
-        applies-to: security-updates
-        patterns:
-          - "*"
-    labels:
-      - "dependencies"
-      - "github-actions"