chore(signer): set default preload_security_parameter to 2160

This makes both signer and aggregator use the same value

Author: Alenar

mithril-signer/src/configuration.rs

@@ -71,7 +71,7 @@ pub struct Configuration {
     pub network_security_parameter: BlockNumber,
 
     /// Blocks offset, from the tip of the chain, to exclude during the Cardano transactions preload,
-    /// default to 1000.
+    /// default to 2160.
     #[example = "`2160`"]
     pub preload_security_parameter: BlockNumber,
 
@@ -303,7 +303,7 @@ impl Default for DefaultConfiguration {
             metrics_server_ip: "0.0.0.0".to_string(),
             metrics_server_port: 9090,
             network_security_parameter: 2160, // 2160 is the mainnet value
-            preload_security_parameter: 1000,
+            preload_security_parameter: 2160,
             enable_transaction_pruning: true,
             transactions_import_block_chunk_size: 1500,
             cardano_transactions_block_streamer_max_roll_forwards_per_poll: 10000,