Filled delete.py and created change.py

src/database/change.py

@@ -0,0 +1,16 @@
+import sqlmodel
+from sqlalchemy.future import Engine
+
+from . import models
+
+
+def change_master_pass(
+    engine: Engine, user_id: int, salt: bytes, passwd: bytes
+) -> None:
+    statement = sqlmodel.update(
+        models.MasterPass,
+        models.MasterPass.user_id == user_id,
+        sqlmodel.values(salt=salt, passwd=passwd),
+    )
+    with sqlmodel.Session(engine) as session:
+        session.exec(statement)