Update gRPC to not include systemd

rschu1ze · Algunenano · commit ed7bfeff6999 · 2023-11-13T16:27:48.000+01:00
diff --git a/contrib/grpc b/contrib/grpc
@@ -1 +1 @@
-Subproject commit b723ecae0991bb873fe87a595dfb187178733fde
+Subproject commit 6e5e645de7cb0604e3ad4ba55abff2eca38c1803
