Integration build a small memory image

Modify one of the integration builds so that that the
OPENSSL_SMALL_MEMORY option is compiled. There doesn't appear to be an
automatic build with this option set.

I think the options in the modified build are covered elsewhere (without
the small memory) but a new job might still be preferable.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3268)