rpcd: update to latest Git HEAD

8c852b6 ucode: write ucode runtime exceptions to stderr
Signed-off-by: NJo-Philipp Wich <jo@mein.io>

package/system/rpcd/Makefile

@@ -12,9 +12,9 @@ PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/rpcd.git
-PKG_MIRROR_HASH:=90ce347d391694e6207ae3c57aaf8b80b7cfe043823f3610244c8f47e9017935
-PKG_SOURCE_DATE:=2022-09-12
-PKG_SOURCE_VERSION:=e80d0b2d77f8ed163872971200d24c423db60bb8
+PKG_MIRROR_HASH:=18137fa6904b1a7aec03a16a4c25fd9b9689b24ee14d431bacdda9f093339071
+PKG_SOURCE_DATE:=2022-09-21
+PKG_SOURCE_VERSION:=8c852b656bf1622dee1ae2cfa4c083f730c1c539
 PKG_MAINTAINER:=Jo-Philipp Wich <jo@mein.io>
 
 PKG_LICENSE:=ISC