fix(esplora): Bump esplora-client to 0.12.3

This is required for `.get_block_infos` to be available.

Author: evanlinjin

crates/esplora/Cargo.toml

@@ -16,7 +16,7 @@ workspace = true
 
 [dependencies]
 bdk_core = { path = "../core", version = "0.6.1", default-features = false }
-esplora-client = { version = "0.12.1", default-features = false }
+esplora-client = { version = "0.12.3", default-features = false }
 async-trait = { version = "0.1.66", optional = true }
 futures = { version = "0.3.26", optional = true }