Configure digest updates to use branch automerge

[Copilot]

Digest updates were configured with automerge: true but inherited the global automergeType: 'pr', causing them to merge via pull requests.

Changes

• Added automergeType: 'branch' to the digest updates package rule

This enables direct branch commits for digest updates, bypassing PR creation entirely—consistent with how @stanlemon packages are already handled.

{
  "groupName": "all digest updates",
  "groupSlug": "all-digest",
  "matchUpdateTypes": ["digest"],
  "automerge": true,
  "automergeType": "branch"  // Added
}

Original prompt

Can you make it so that digest updates for my renovate config are auto merged with a branch?

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