fix espnow memory leak

diff --git a/components/esp32/lib b/components/esp32/lib
index 65a888f7fe464b27ec12b50455ac53a0147a4e07..30f457baf878e8de6a1b258d81184f57e51f5400 160000 (submodule)
--- a/components/esp32/lib
+++ b/components/esp32/lib
@@ -1 +1 @@
-Subproject commit 65a888f7fe464b27ec12b50455ac53a0147a4e07
+Subproject commit 30f457baf878e8de6a1b258d81184f57e51f5400