This updates all sources in deps/openssl/openssl by:
    $ cd deps/openssl/
    $ rm -rf openssl
    $ tar zxf ~/tmp/openssl-1.1.1s.tar.gz
    $ mv openssl-1.1.1s openssl
    $ git add --all openssl
    $ git commit openssl

After an OpenSSL source update, all the config files need to be
regenerated and committed by:
   $ make -C deps/openssl/config
   $ git add deps/openssl/config/archs
   $ git add deps/openssl/openssl/include/crypto/bn_conf.h
   $ git add deps/openssl/openssl/include/crypto/dso_conf.h
   $ git add deps/openssl/openssl/include/openssl/opensslconf.h
   $ git commit