Bump github.com/ipfs/go-datastore from 0.3.1 to 0.4.1

Bumps [github.com/ipfs/go-datastore](https://github.com/ipfs/go-datastore) from 0.3.1 to 0.4.1.
- [Release notes](https://github.com/ipfs/go-datastore/releases)
- [Commits](https://github.com/ipfs/go-datastore/compare/v0.3.1...v0.4.1)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

go.mod

 module github.com/ipfs/go-ds-measure
 
 require (
-	github.com/ipfs/go-datastore v0.3.1
+	github.com/ipfs/go-datastore v0.4.1
 	github.com/ipfs/go-metrics-interface v0.0.1
 )
 

go.sum

@@ -6,6 +6,8 @@ github.com/ipfs/go-datastore v0.3.0 h1:9au0tYi/+n7xeUnGHG6davnS8x9hWbOzP/388Vx3C
 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-datastore v0.4.1 h1:W4ZfzyhNi3xmuU5dQhjfuRn/wFuqEE1KnOmmQiOevEY=
+github.com/ipfs/go-datastore v0.4.1/go.mod h1:SX/xMIKoCszPqp+z9JhPYCmoOoXTvaa13XEbGtsFUhA=
 github.com/ipfs/go-ipfs-delay v0.0.0-20181109222059-70721b86a9a8/go.mod h1:8SP1YXK1M1kXuc4KJZINY3TQQ03J2rwBG9QfXmbRPrw=
 github.com/ipfs/go-metrics-interface v0.0.1 h1:j+cpbjYvu4R8zbleSs36gvB7jR+wsL2fGD6n0jO4kdg=
 github.com/ipfs/go-metrics-interface v0.0.1/go.mod h1:6s6euYU4zowdslK0GKHmqaIZ3j/b/tL7HTWtJ4VPgWY=
@@ -19,3 +21,4 @@ github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=