Bump github.com/ipfs/go-log from 1.0.2 to 1.0.3

Bumps [github.com/ipfs/go-log](https://github.com/ipfs/go-log) from 1.0.2 to 1.0.3.
- [Release notes](https://github.com/ipfs/go-log/releases)
- [Commits](https://github.com/ipfs/go-log/compare/v1.0.2...v1.0.3)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

go.mod

@@ -2,7 +2,7 @@ module github.com/libp2p/go-libp2p-pubsub
 
 require (
 	github.com/gogo/protobuf v1.3.1
-	github.com/ipfs/go-log v1.0.2
+	github.com/ipfs/go-log v1.0.3
 	github.com/libp2p/go-libp2p-blankhost v0.1.4
 	github.com/libp2p/go-libp2p-core v0.5.1
 	github.com/libp2p/go-libp2p-discovery v0.2.0