make zstd in C/C optional and disable it for now in RPM/DEB

cmake/build_configurations/mysql_release.cmake

@@ -106,6 +106,7 @@ ELSEIF(RPM)
   SET(PLUGIN_AUTH_SOCKET YES CACHE STRING "")
   SET(WITH_EMBEDDED_SERVER ON CACHE BOOL "")
   SET(WITH_PCRE system CACHE STRING "")
+  SET(CLIENT_PLUGIN_ZSTD OFF)
   IF(RPM MATCHES "fedora|centos|rhel")
     SET(WITH_ROCKSDB_BZip2 OFF CACHE STRING "")
   ENDIF()
@@ -120,6 +121,7 @@ ELSEIF(DEB)
   SET(PLUGIN_AUTH_SOCKET YES CACHE STRING "")
   SET(WITH_EMBEDDED_SERVER ON CACHE BOOL "")
   SET(WITH_PCRE system CACHE STRING "")
+  SET(CLIENT_PLUGIN_ZSTD OFF)
   SET(WITH_ROCKSDB_BZip2 OFF CACHE STRING "")
 ELSE()
   SET(WITH_SSL bundled CACHE STRING "")

libmariadb @ 39d19136

-Subproject commit d04c5d3eb80610d32c883f9f06eebddea1f50831
+Subproject commit 39d19136f4700b9c756cef637e5156a67cb90114