build: Change qnap triple to musl

Author: lcruz99

rust_build_utils/rust_utils_config.py

@@ -74,7 +74,7 @@
         "archs": {
             "x86_64": {
                 "strip_path": "/usr/bin/objcopy",
-                "rust_target": "x86_64-unknown-linux-gnu",
+                "rust_target": "x86_64-unknown-linux-musl",
             },
         },
         "post_build": ["rust_build_utils.linux_build_utils.strip"],