get device info with libc using major/minor

Signed-off-by: Jason Volk <jason@zemos.net>

src/core/Cargo.toml

@@ -75,6 +75,7 @@ http.workspace = true
 image.workspace = true
 ipaddress.workspace = true
 itertools.workspace = true
+libc.workspace = true
 libloading.workspace = true
 log.workspace = true
 rand.workspace = true
@@ -87,7 +88,6 @@ serde_json.workspace = true
 serde_regex.workspace = true
 serde_yaml.workspace = true
 serde.workspace = true
-sysinfo.workspace = true
 thiserror.workspace = true
 tikv-jemallocator.optional = true
 tikv-jemallocator.workspace = true