Bump version to 0.26.0-rc.2

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "bdk"
-version = "0.26.0"
+version = "0.26.0-rc.2"
 edition = "2018"
 authors = ["Alekos Filini <alekos.filini@gmail.com>", "Riccardo Casatta <riccardo@casatta.it>"]
 homepage = "https://bitcoindevkit.org"
@@ -23,7 +23,7 @@ rand = "^0.8"
 # Optional dependencies
 sled = { version = "0.34", optional = true }
 electrum-client = { version = "0.12", optional = true }
-esplora-client = { version = "0.2", default-features = false, optional = true }
+esplora-client = { version = "0.3", default-features = false, optional = true }
 rusqlite = { version = "0.27.0", optional = true }
 ahash = { version = "0.7.6", optional = true }
 futures = { version = "0.3", optional = true }