core (memory/sqla_config): set a timeout for SQLite:

with default timeout, we may have database lock errors from time to time. To avoid this, a
timeout of 30s is now set.

sat/memory/sqla_config.py

@@ -32,7 +32,7 @@ def getDbConfig() -> dict:
     main_conf = config.parseMainConf()
     local_dir = Path(config.getConfig(main_conf, "", "local_dir"))
     database_path = (local_dir / C.SAVEFILE_DATABASE).expanduser()
-    url = f"sqlite+aiosqlite:///{quote(str(database_path))}"
+    url = f"sqlite+aiosqlite:///{quote(str(database_path))}?timeout=30"
     return {
         "type": "sqlite",
         "path": database_path,