build-988f8bf

Enable LLVM_ENABLE_ZSTD with static zstd across all platforms

Build and link pinned static zstd 1.5.7 for Linux, macOS, and Windows host builds of LLDB. Explicitly disable zstd on Android lldb-server cross-compilation.

Bug: NA
Test: Ran ./build_lldb_linux.sh and verified lldb version and compression symbols