Merge #88: chore: bump version to 0.9.0

0cca85d chore: bump version to 0.9.0 (志宇)

Pull request description:

ACKs for top commit:
  evanlinjin:
    self-ACK 0cca85d
  oleonardolima:
    ACK 0cca85d

Tree-SHA512: 3339bea2ecc4aae77efd394fa9f52b02aa1c8c45f4acd94086dbf2487d89f24f1f543728859b5a8953d09d4a8569b06e4483c16075802823aa34c1f7a26af700

Author: evanlinjin

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "esplora-client"
-version = "0.8.0"
+version = "0.9.0"
 edition = "2018"
 authors = ["Alekos Filini <[email protected]>"]
 license = "MIT"