Use a released version of gluon_salsa

Author: Marwes

Cargo.lock

@@ -43,7 +43,7 @@ futures = { version = "0.3.1", default-features = false }
 codespan = "0.9"
 codespan-reporting = "0.9"
 pin-project-lite = { version = "0.1", optional = true }
-salsa = { path = "../salsa" }
+salsa = { version = "0.15.2", package = "gluon-salsa" }
 
 serde = { version = "1.0.0", optional = true }
 serde_state = { version = "0.4", optional = true }