Rebase Dependabots

Find all open Dependabot PRs and comment "@dependabot rebase" on each to trigger a rebase of stale branches.

Arguments

• PR numbers (optional): Space-separated PR numbers to process. If omitted, discover all open Dependabot PRs.
• --dry-run (optional): List PRs that would be rebased without commenting.

Procedure

1. Find open Dependabot PRs

   If PR numbers were provided, use those. Otherwise discover all:

   gh pr list --author "app/dependabot" --state open --json number,title