Update rpki-client-portable to fix build

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Saša Nedvědický <sashan@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/28004)

diff --git a/rpki-client-portable b/rpki-client-portable
index 7ccf136e96dd30189ba4648e3cdeb4d39153d86f..4fe1d9b72dfd6b8745b8a3d66b388526835998be 160000 (submodule)
--- a/rpki-client-portable
+++ b/rpki-client-portable
@@ -1 +1 @@
-Subproject commit 7ccf136e96dd30189ba4648e3cdeb4d39153d86f
+Subproject commit 4fe1d9b72dfd6b8745b8a3d66b388526835998be