Upgrade to IPLD 0.18.0

Upgrade to a concrete tagged release of IPLD. The previous version used
by delegated routing was the commit just before the 0.18.0 release.

Bump version in version file in preparation for release.

go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/ipfs/go-ipns v0.1.2
 	github.com/ipfs/go-log/v2 v2.5.1
 	github.com/ipld/edelweiss v0.2.0
-	github.com/ipld/go-ipld-prime v0.17.1-0.20220627233435-adf99676901e
+	github.com/ipld/go-ipld-prime v0.18.0
 	github.com/libp2p/go-libp2p-core v0.16.1
 	github.com/libp2p/go-libp2p-record v0.1.3
 	github.com/multiformats/go-multiaddr v0.5.0

go.sum

@@ -102,8 +102,8 @@ github.com/ipld/edelweiss v0.2.0 h1:KfAZBP8eeJtrLxLhi7r3N0cBCo7JmwSRhOJp3WSpNjk=
 github.com/ipld/edelweiss v0.2.0/go.mod h1:FJAzJRCep4iI8FOFlRriN9n0b7OuX3T/S9++NpBDmA4=
 github.com/ipld/go-ipld-prime v0.9.0/go.mod h1:KvBLMr4PX1gWptgkzRjVZCrLmSGcZCb/jioOQwCqZN8=
 github.com/ipld/go-ipld-prime v0.17.0/go.mod h1:aYcKm5TIvGfY8P3QBKz/2gKcLxzJ1zDaD+o0bOowhgs=
-github.com/ipld/go-ipld-prime v0.17.1-0.20220627233435-adf99676901e h1:p5qepdt1UEk6UadNwNBFDlm/uC+GwSmdVB4wqyt2JLA=
-github.com/ipld/go-ipld-prime v0.17.1-0.20220627233435-adf99676901e/go.mod h1:735yXW548CKrLwVCYXzqx90p5deRJMVVxM9eJ4Qe+qE=
+github.com/ipld/go-ipld-prime v0.18.0 h1:xUk7NUBSWHEXdjiOu2sLXouFJOMs0yoYzeI5RAqhYQo=
+github.com/ipld/go-ipld-prime v0.18.0/go.mod h1:735yXW548CKrLwVCYXzqx90p5deRJMVVxM9eJ4Qe+qE=
 github.com/jbenet/go-cienv v0.1.0/go.mod h1:TqNnHUmJgXau0nCzC7kXWeotg3J9W34CUv5Djy1+FlA=
 github.com/jbenet/goprocess v0.0.0-20160826012719-b497e2f366b8/go.mod h1:Ly/wlsjFq/qrU3Rar62tu1gASgGw6chQbSh/XgIIXCY=
 github.com/jbenet/goprocess v0.1.3/go.mod h1:5yspPrukOVuOLORacaBi858NqyClJPQxYZlqdZVfqY4=

version.json

@@ -1,3 +1,3 @@
 {
-  "version": "v0.5.0"
+  "version": "v0.5.1"
 }