chore(deps): regenerate pnpm-lock.yaml after ep_plugin_helpers bump (#187)

Prior package.json bump (commit `02be0dc`)
left the lockfile pinned to ^0.5.x while the manifest moved to ^0.6.x.
The release workflow's `pnpm i --frozen-lockfile` step has been failing
ever since, blocking every npm publish — fresh installs still resolve
ep_plugin_helpers@0.5.3 even though main has ^0.6.x.

Regenerate the lockfile so the next push to the default branch can
re-publish cleanly.

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: JohnMcLear