hardforks: add block heights for test and mainnet

Author: hayzamjs

src/hardforks/hardforks.cpp

@@ -40,6 +40,9 @@
 const hardfork_t mainnet_hard_forks[] = {
  {1, 1, 0, 1341378000},
  {12, 2, 0, 1582125473},
+
+ //Approximately on 14th of September 2023 (V8)
+ {16, 820102, 0, 1692005445},
 };
 
 const size_t num_mainnet_hard_forks =
@@ -49,7 +52,9 @@ const uint64_t mainnet_hard_fork_version_1_till = 1;
 const hardfork_t testnet_hard_forks[] = {
  {1, 1, 0, 1341378000},
  {12, 2, 0, 1582125473},
- {16, 150, 0, 1691411928},
+
+ // Approximately on 14th of August 2023 (V8)
+ {16, 4700, 0, 1692005445},
 };
 const size_t num_testnet_hard_forks =
  sizeof(testnet_hard_forks) / sizeof(testnet_hard_forks[0]);