Fixed decoding files to return strings instead of bytes and properly called the function

src/db.py

@@ -48,7 +48,7 @@ def get_connection_pool():
 	global _connection_pool
 	with _pool_lock:
 		if _connection_pool is None:
-			create_connection_pool
+			create_connection_pool()
 	return _connection_pool
 
 def get_db():

src/secret_handler.py

@@ -13,4 +13,4 @@ def decrypt_token(token:str)->str:
 		  
 def return_credentials(path: str)->str:
 	with open (path) as file:
-	    return file.read()
+	    return file.read().strip()