Update oqs-provider to current, which support opaque asn1 strings

This then however breaks for other reasons

Reviewed-by: Neil Horman <nhorman@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
MergeDate: Wed Feb 25 10:14:58 2026
(Merged from https://github.com/openssl/openssl/pull/29862)

diff --git a/oqs-provider b/oqs-provider
index 7bc597c04b534ddea9b6654481deb31ded8e1bbc..c5fb439e4ffd947f24c139232fb04fd71fe3c29e 160000 (submodule)
--- a/oqs-provider
+++ b/oqs-provider
@@ -1 +1 @@
-Subproject commit 7bc597c04b534ddea9b6654481deb31ded8e1bbc
+Subproject commit c5fb439e4ffd947f24c139232fb04fd71fe3c29e