Update cargo deny

deny.toml

@@ -1,15 +1,10 @@
 [advisories]
-vulnerability = "deny"
-unmaintained = "warn"
-notice = "warn"
+version = 2
 ignore = []
 
 [licenses]
-unlicensed = "warn"
-allow = []
-deny = []
-copyleft = "warn"
-allow-osi-fsf-free = "either"
+version = 2
+allow = ["Apache-2.0", "MIT", "Unicode-3.0"]
 confidence-threshold = 0.8
 
 [bans]