chore(vendor): import pi 1.3.0

Imported as a linear vendor commit so forge rebases do not replay the upstream root tree.

git-subtree-dir: third_party/pi

git-subtree-split: 71023aec1546d6d677a65669c5665c0927ce0dd0

third_party/pi/scripts/issues/run.sh

@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+# Start the issue triage server. Environment variables are documented in README.md.
+set -euo pipefail
+cd "$(dirname "$0")/../.."
+exec node --conditions=source --import ./scripts/issues/register.mjs scripts/issues/main.ts