[Bug] cargo build in tools/move-mv-llvm-compiler directory should also build move-ir-compiler

[ksolana]

Since it is not built currently, cargo test fails for the tests requiring move-ir-compiler.

[brson]

If somebody wants to implement this, there is a pattern they can follow in the rbpf-tests harness using Once to do a one-time build of move-native. Something similar could be done for move-ir-compiler and move-compiler, though the cargo invocation needs to be a lot different - the rbpf-tests build is using the cargo from sbf-tools and building into its own target directory, whereas a build of move-ir-compiler and move-build needs to use the active toolchain and the default target directory.