fix(signalr): use custom msgpack to encode/decode

packages/msgpack_lazer_api/msgpack_lazer_api.pyi

@@ -0,0 +1,11 @@
+from typing import Any
+
+class APIMod:
+    def __init__(self, acronym: str, settings: dict[str, Any]) -> None: ...
+    @property
+    def acronym(self) -> str: ...
+    @property
+    def settings(self) -> str: ...
+
+def encode(obj: Any) -> bytes: ...
+def decode(data: bytes) -> Any: ...