build: fix `./configure --enable-d8`

Add SHARED_INTERMEDIATE_DIR to the include path because that is where
Torque-generated files live. d8.cc includes files from deps/v8/src
that depend on those generated files.

PR-URL: https://github.com/nodejs/node/pull/23656


Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>