refactor: move firmware workspace under firmware

firmware/libs/kaptan-flight-runtime/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "kaptan-flight-runtime"
+edition.workspace = true
+license.workspace = true
+rust-version.workspace = true
+version.workspace = true
+
+[lints]
+workspace = true
+
+[dependencies]
+kaptan-config = { path = "../kaptan-config" }
+kaptan-flight-config = { path = "../kaptan-flight-config" }
+kaptan-log = { path = "../kaptan-log" }