Clear all updates from dependabot.yml

Removed all package ecosystem configurations for Dependabot.

Author: david-driscoll

.github/dependabot.yml

@@ -1,28 +1,2 @@
 version: 2
-updates:
-  - package-ecosystem: 'github-actions'
-    directory: '/'
-    schedule:
-      interval: 'daily'
-    assignees:
-      - 'david-driscoll'
-    open-pull-requests-limit: 100
-
-  - package-ecosystem: 'npm'
-    directory: '/'
-    schedule:
-      interval: 'daily'
-    assignees:
-      - 'david-driscoll'
-    open-pull-requests-limit: 100
-
-  - package-ecosystem: 'nuget'
-    directory: '/'
-    schedule:
-      interval: 'daily'
-    assignees:
-      - 'david-driscoll'
-    ignore:
-      - dependency-name: Microsoft.Extensions.*
-      - dependency-name: Microsoft.AspNetCore.*
-    open-pull-requests-limit: 100
+updates: []