cmake: add dependencies for LuaJIT and SQL fuzzers

Added Google's 'libprotobuf-mutator' and 'protobuf' libraries
for developing grammar-based LuaJIT and SQL fuzzers based on
LibFuzzer.

It is needed to build protobuf module from source because
by default, the system-installed version of protobuf is used
by libprotobuf-mutator, and this version can be too old.

Part of #4823

NO_CHANGELOG=<dependencies>
NO_DOC=<dependencies>
NO_TEST=<dependencies>