message: fix(icon): Add missing dependabot icon extension
  Currently the icon `dependabot` is only mapped to the file extension
  `dependabot.yml`, but Dependabot supports both `.yaml` and `.yml`.
  Tested this personally and it is also documented in various issues in the
  Dependabot repos. For example [here](https://github.com/dependabot/feedback/issues/874).
diff: @@ -1276,7 +1276,7 @@ export const extensions: IFileCollection = {
  { icon: 'db', extensions: ['db'], light: true, format: FileFormat.svg },
  {
  icon: 'dependabot',
  - extensions: ['dependabot.yml'],
  + extensions: ['dependabot.yml', 'dependabot.yaml'],
  filename: true,
  format: FileFormat.svg,
  },
  