Limit ESLint group to major updates

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Author: henrymercer

.github/dependabot.yml

@@ -44,8 +44,6 @@ updates:
           - "@eslint/js"
         update-types:
           - "major"
-          - "minor"
-          - "patch"
       actions:
         patterns:
           - "@actions/*"