feat: plumb through context changes (#28)

Author: guseggert

go.mod

@@ -3,12 +3,12 @@ module github.com/ipfs/go-fetcher
 go 1.16
 
 require (
-	github.com/ipfs/go-bitswap v0.3.4
-	github.com/ipfs/go-block-format v0.0.2
-	github.com/ipfs/go-blockservice v0.1.4
+	github.com/ipfs/go-bitswap v0.5.0
+	github.com/ipfs/go-block-format v0.0.3
+	github.com/ipfs/go-blockservice v0.2.0
 	github.com/ipfs/go-cid v0.0.7
 	github.com/ipfs/go-ipfs-delay v0.0.1
-	github.com/ipfs/go-ipfs-routing v0.1.0
+	github.com/ipfs/go-ipfs-routing v0.2.0
 	github.com/ipld/go-ipld-prime v0.11.0
 	github.com/stretchr/testify v1.7.0
 )