Bump github.com/ipfs/go-datastore from 0.3.0 to 0.3.1

Bumps [github.com/ipfs/go-datastore](https://github.com/ipfs/go-datastore) from 0.3.0 to 0.3.1.
- [Release notes](https://github.com/ipfs/go-datastore/releases)
- [Commits](https://github.com/ipfs/go-datastore/compare/v0.3.0...v0.3.1)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

go.mod

 module github.com/ipfs/go-ds-flatfs
 
 require (
-	github.com/ipfs/go-datastore v0.3.0
+	github.com/ipfs/go-datastore v0.3.1
 	github.com/ipfs/go-log v0.0.1
 	github.com/jbenet/goprocess v0.1.3
 )

go.sum

@@ -8,6 +8,8 @@ github.com/google/uuid v1.1.1 h1:Gkbcsh/GbpXz7lPftLA3P6TYMwjCLYm83jiFQZF/3gY=
 github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/ipfs/go-datastore v0.3.0 h1:9au0tYi/+n7xeUnGHG6davnS8x9hWbOzP/388Vx3CMs=
 github.com/ipfs/go-datastore v0.3.0/go.mod h1:w38XXW9kVFNp57Zj5knbKWM2T+KOZCGDRVNdgPHtbHw=
+github.com/ipfs/go-datastore v0.3.1 h1:SS1t869a6cctoSYmZXUk8eL6AzVXgASmKIWFNQkQ1jU=
+github.com/ipfs/go-datastore v0.3.1/go.mod h1:w38XXW9kVFNp57Zj5knbKWM2T+KOZCGDRVNdgPHtbHw=
 github.com/ipfs/go-ipfs-delay v0.0.0-20181109222059-70721b86a9a8/go.mod h1:8SP1YXK1M1kXuc4KJZINY3TQQ03J2rwBG9QfXmbRPrw=
 github.com/ipfs/go-log v0.0.1 h1:9XTUN/rW64BCG1YhPK9Hoy3q8nr4gOmHHBpgFdfw6Lc=
 github.com/ipfs/go-log v0.0.1/go.mod h1:kL1d2/hzSpI0thNYjiKfjanbVNU+IIGA/WnNESY9leM=