update HF time

Author: envestcc

changelog/v2.1.0-release-note.md

@@ -1,8 +1,8 @@
 # v2.1.0 Release Note
 
 ## Summary
-**v2.1.0 has a hardfork, which will be activated at block height 33,782,761
-(ETA is around 12/20/2024 02:20:10 AM +UTC) on IoTeX L1 mainnet.**
+**v2.1.0 has a hardfork, which will be activated at block height 33,730,921
+(ETA is around 12/17/2024 02:20:40 AM +UTC) on IoTeX L1 mainnet.**
 
 All nodes **must** upgrade to this release, otherwise the node runs the risk of
 not being able to sync with the IoTeX blockchain after other nodes have upgraded.