ver bump to 1.2.0

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "Malachite"
-version = "1.1.0"
+version = "1.2.0"
 authors = [ "michal <michal@tar.black>" ]
 edition = "2021"
 description = "Packaging tool for pacman repositories"
@@ -21,4 +21,4 @@ mimalloc = { version = "0.1.27", default-features = false }
 clap = { version = "2.34.0", default-features = false }
 toml = { version = "0.5.8", default-features = false }
 serde = { version = "1.0.134", default-features = false }
-serde_derive = { version = "1.0.134", default-features = false }
+serde_derive = { version = "1.0.134", default-features = false }