benches: bump criterion to prevent Profiler not implemented error

This was cause by having multiple different versions of criterion, and
therefore the train, in use: we specified ^0.4, but pprof 0.14.0 already
required ^0.5.

Author: jonasmalacofilho

benches/Cargo.toml

@@ -8,7 +8,7 @@ publish = false
 
 [dev-dependencies]
 argon2 = { path = "../argon2" }
-criterion = { version = "0.4", features = ["html_reports"] }
+criterion = { version = "0.5", features = ["html_reports"] }
 pprof = { version = "0.14", features = ["flamegraph", "criterion"] }
 
 [features]