Set Hard Fork dates for testnet and main net.

libraries/chain/hardfork.d/SON_FOR_ETHEREUM.hf

 #ifndef HARDFORK_SON_FOR_ETHEREUM_TIME
 #ifdef BUILD_PEERPLAYS_TESTNET
-#define HARDFORK_SON_FOR_ETHEREUM_TIME (fc::time_point_sec::from_iso_string("2023-01-24T00:00:00"))
+#define HARDFORK_SON_FOR_ETHEREUM_TIME (fc::time_point_sec::from_iso_string("2023-06-05T12:00:00"))
 #else
-#define HARDFORK_SON_FOR_ETHEREUM_TIME (fc::time_point_sec::from_iso_string("2023-03-24T00:00:00"))
+#define HARDFORK_SON_FOR_ETHEREUM_TIME (fc::time_point_sec::from_iso_string("2023-07-05T12:00:00"))
 #endif
 #endif