feat: update BRC2.0 version requirement to 0.15.8

Author: alpergundogdu

modules/brc20_index/src/config/config.rs

@@ -199,7 +199,7 @@ pub const OPERATION_MODE_LIGHT: &str = "light";
 // These should be updated when the database schema changes
 pub const DB_VERSION: i32 = 7;
 pub const EVENT_HASH_VERSION: i32 = 3;
-pub const BRC20_PROG_VERSION_REQUIREMENT: &str = "~0.15.7";
+pub const BRC20_PROG_VERSION_REQUIREMENT: &str = "~0.15.8";
 pub const INDEXER_VERSION: &str = "opi-brc20-rs-node v2.0.0";
 pub const LIGHT_CLIENT_VERSION: &str = "opi-brc20-rs-node-light v2.0.0";