Parse database_url from config strings

Author: tobiasraabe

src/_pytask/database.py

@@ -14,11 +14,14 @@
 @hookimpl
 def pytask_parse_config(config: dict[str, Any]) -> None:
     """Parse the configuration."""
+    database_url = config["database_url"]
     # Set default.
-    if not config["database_url"]:
+    if not database_url:
         config["database_url"] = make_url(
             f"sqlite:///{config['root'].joinpath('.pytask').as_posix()}/pytask.sqlite3"
         )
+    elif isinstance(database_url, str):
+        config["database_url"] = make_url(database_url)
 
     if (
         config["database_url"].drivername == "sqlite"