Function runUpdateCommand

runUpdateCommand(
    cmd: UpdateCommand,
    log: Logger,
    deps?: RunScanCommandDeps,
): Promise<number>
Execute the update subcommand: incrementally re-scan the repos already in a cache. The targets are read from cache.repos (no --repo), and the scan persists back to the same cache file, so unchanged repos are skipped and only issues modified since each repo's last scan are re-fetched (see runScan).
Parameters
- cmd: UpdateCommand
  the parsed update command
- log: Logger
  the stdout/stderr sink
- deps: RunScanCommandDeps = {}
  injectable boundaries (runScan); omit to use the real engine
Returns Promise<number>
the process exit code (0 on success or a clean rate-limit stop; 1 when the cache is missing, corrupt, or holds no scanned repos)
Example
```
await runUpdateCommand(cmd, console.log)  // => 0
```
See
runScanCommand
- Defined in cli/issue-tree.ts:877