fix: revert change to block version

This should not change until we are sure signers have been updated to
accept later block versions.

Author: obycode

stackslib/src/chainstate/nakamoto/mod.rs

@@ -131,7 +131,7 @@ pub use self::staging_blocks::{
     NakamotoStagingBlocksConn, NakamotoStagingBlocksConnRef, NakamotoStagingBlocksTx,
 };
 
-pub const NAKAMOTO_BLOCK_VERSION: u8 = 2;
+pub const NAKAMOTO_BLOCK_VERSION: u8 = 0;
 
 define_named_enum!(HeaderTypeNames {
     Nakamoto("nakamoto"),