fix: export processLock from toplevel (#1057)

hf · web-flow · commit d99695af9e63 · 2025-05-16T20:25:44.000+02:00
Process lock was added in #977 but wasn't exported in top-level which made imports hard.
diff --git a/src/index.ts b/src/index.ts
@@ -9,4 +9,5 @@ export {
   navigatorLock,
   NavigatorLockAcquireTimeoutError,
   internals as lockInternals,
+  processLock,
 } from './lib/locks'
