contrib: update opendht

Change-Id: I0799120a2f65bed863b32dc14dcdb3ce3f0d9ace

contrib/src/opendht/SHA512SUMS

-133d94cb7a91993831b146917db5a689eae611057b9bc7b3dc6a1493d90e5d6b4613d3244691db76dd24d82178a55b03c816849a8a76b5b3fe1d1558eee45193  opendht-2.6.0.tar.gz
+780d21f6d21bddae30fd47b131d06366da8223102f2def84023c4cdfc5dfcd20e6d7dced418e69c33f202726f6fc50fed7590ab4043fde05b6dd26238cc021a6  opendht-3.0.1.tar.gz

contrib/src/opendht/package.json

 {
     "name": "opendht",
-    "version": "2.6.0",
+    "version": "3.0.1",
     "url": "https://github.com/savoirfairelinux/opendht/archive/v__VERSION__.tar.gz",
     "deps": [
         "argon2",

contrib/src/opendht/rules.mak

 # OPENDHT
-OPENDHT_VERSION := 2.6.0
+OPENDHT_VERSION := 3.0.1
 OPENDHT_URL := https://github.com/savoirfairelinux/opendht/archive/v$(OPENDHT_VERSION).tar.gz
 
 PKGS += opendht