stack/slapos.cfg: version up erp5.util (0.4.77)

Author: Tomo59

stack/slapos.cfg

@@ -204,7 +204,7 @@ dnspython = 1.16.0
 editables = 0.5:whl
 entrypoints = 0.3:whl
 enum34 = 1.1.10
-erp5.util = 0.4.76
+erp5.util = 0.4.77
 erpc = 1.12.0:whl
 et-xmlfile = 1.0.1
 exceptiongroup = 1.1.3:whl