chore: Remove dependabot grouping for gradle deps

Keep only the github-actions grouping. Individual PRs for gradle
dependencies make it easier to review and merge them independently.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: runningcode

.github/dependabot.yml

@@ -16,21 +16,6 @@ updates:
       - dependency-name: "org.springframework.boot*"
     commit-message:
       prefix: "chore(deps)"
-    groups:
-      compose:
-        patterns:
-          - "androidx.compose*"
-          - "org.jetbrains.compose*"
-      androidx:
-        patterns:
-          - "androidx.*"
-      kotlin:
-        patterns:
-          - "org.jetbrains.kotlin*"
-          - "org.jetbrains.kotlinx*"
-      jackson:
-        patterns:
-          - "com.fasterxml.jackson*"
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule: