Remove depandabot - for this project its too annoying without real benefits

.github/dependabot.yml

@@ -1,11 +0,0 @@
-version: 2
-updates:
-  # Enable version updates for npm
-  - package-ecosystem: 'npm'
-    # Look for `package.json` and `lock` files in the `root` directory
-    directory: '/'
-    # Check the npm registry for updates every day (weekdays)
-    schedule:
-      interval: 'monthly'
-    ignore:
-      - dependency-name: '@types/node'