Update MAINNET_VERSION version to 28.0.5

Author: niccoloraspa

i.py

@@ -18,7 +18,7 @@
 INSTALL_CHOICES = ['node', 'client', 'localosmosis']
 PRUNING_CHOICES = ['default', 'nothing', 'everything']
 
-MAINNET_VERSION = "28.0.4"
+MAINNET_VERSION = "28.0.5"
 TESTNET_VERSION = "28.0.0-rc1"
 
 # CLI arguments