🚧 move cqhttp config into adapter

nonebot/adapters/cqhttp/config.py

@@ -0,0 +1,12 @@
+from typing import Optional
+
+from pydantic import Field, BaseSettings
+
+
+class Config(BaseSettings):
+    cqhttp_access_token: Optional[str] = Field(default=None,
+                                               alias="access_token")
+    cqhttp_secret: Optional[str] = Field(default=None, alias="secret")
+
+    class Config:
+        extra = "ignore"