fastapi-sqlalchemy-pg-catalog/app: drop redundant future=True on create_engine

SQLAlchemy 2.x defaults to the future-2.0 behaviour; passing
`future=True` is redundant and can trip a deprecation warning in
some 2.x point releases. Dropped to keep the sample free of incidental
warning noise that would distract from the dispatcher-bug repro.

Refs Copilot review on #102.

Signed-off-by: Akash Kumar <meakash7902@gmail.com>

Author: AkashKumar7902

fastapi-sqlalchemy-pg-catalog/app/main.py

@@ -65,7 +65,10 @@ class Project(Base):
     name = Column(String(100), nullable=False)
 
 
-engine = create_engine(DATABASE_URL, echo=SQL_ECHO, future=True)
+# SQLAlchemy 2.x defaults to the future-2.0 behaviour, so no
+# `future=True` is needed (and passing it can trip a deprecation
+# warning depending on the installed minor version).
+engine = create_engine(DATABASE_URL, echo=SQL_ECHO)
 
 
 @asynccontextmanager