Bump to 0.8.0.

Author: jmjoy

Cargo.toml

@@ -14,7 +14,7 @@
 
 [package]
 name = "fastcgi-client"
-version = "0.8.0-alpha.2"
+version = "0.8.0"
 authors = ["jmjoy <jmjoy@apache.org>"]
 edition = "2021"
 description = "Fastcgi client implemented for Rust."