feat(mavlink): adopt the kaptan-native dialect

firmware/libs/kaptan-diagnostics-mavlink/Cargo.toml

@@ -11,7 +11,4 @@ workspace = true
 [dependencies]
 kaptan-err-reportable = { path = "../kaptan-err-reportable" }
 kaptan-log = { path = "../kaptan-log" }
-kaptan-mavlink = { path = "../kaptan-mavlink", default-features = false, features = ["dialect-kaptan"] }
-
-[dev-dependencies]
-mavlink = { version = "0.18", default-features = false, features = ["embedded"] }
+kaptan-mavlink = { path = "../kaptan-mavlink", default-features = false }