Moved database module to separate library

src/main.py

@@ -4,7 +4,7 @@ from github_api import find_package_version_with_tag as find_package_version_wit
 from dockerhub_api import find_package_version_with_tag as find_package_version_with_tag_dockerhub
 import uvicorn
 from contextlib import asynccontextmanager
-from db import get_db, create_connection_pool, close_connection_pool, start_healthcheck_thread
+from db_module import get_db, create_connection_pool, close_connection_pool, start_healthcheck_thread
 from simple_logger_handler import setup_logger, LOG_LEVEL
 from send_notification import send_notification
 from metrics_server import REQUEST_COUNTER
@@ -20,7 +20,7 @@ async def lifespan(app: FastAPI):
 	logger.info("[App] Starting application...")
 
 	logger.info("[DB] Creating MySQL connection pool...")
-	create_connection_pool()
+	create_connection_pool("repositoryQueryPool")
 
 	start_healthcheck_thread()
 	logger.info("[DB] MySQL healthcheck thread started.")