Update build-dep for xxhash and wolfssl
- Bump build-dep of libxxhash-dev to >=0.7.3 due to lack of pkg-config file in previous versions (
configurefails without). - Bump build-dep of libwolfssl-dev to >=4.2.0 due to lack of the
TLS1_1_VERSION,TLS1_2_VERSION, andTLS1_3_VERSIONmacros in previous versions (configurefails without).