Update GOST engine commit to deal with test failure

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21586)

diff --git a/gost-engine b/gost-engine
index a6b90523e4ea6010b1109b0bae7e2a73b5b025c5..2a8a5e0ecaa3e3d6f4ec722a49aa72476755c2b7 160000 (submodule)
--- a/gost-engine
+++ b/gost-engine
@@ -1 +1 @@
-Subproject commit a6b90523e4ea6010b1109b0bae7e2a73b5b025c5
+Subproject commit 2a8a5e0ecaa3e3d6f4ec722a49aa72476755c2b7