ci(release): skip lefthook on bot commits

The changesets/action commit `chore: version packages (next)` triggers
the pre-commit hook, whose `check:types` job runs `pnpm` and pnpm 11's
verifyDepsBeforeRun re-enters the `prepare` script (`lefthook install`)
from inside the already-running hook. On the current runner image this
fails with "could not replace the hook: ... no such file or directory"
and aborts the release.

Setting LEFTHOOK=0 on this step disables hooks for the bot's commit,
which does not need lint/types checks anyway (deterministic bumps to
package.json, CHANGELOG.md, and .changeset/pre.json).

Author: desko27

.github/workflows/release.yml

@@ -37,3 +37,4 @@ jobs:
           commit: "chore: version packages"
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          LEFTHOOK: "0"