Go get fetches v3.4.0 if using go modules

[hassiexx]

Describe the bug
If working with a project with Go modules, go get will always fetch v3.4.0 as the latest version.

To Reproduce
Steps to reproduce the behavior:

1. Setup a new go project outside the Go path

2. Run go mod init

3. Run go get -u periph.io/x/periph

4. You should see a similar output below

go: finding periph.io/x/periph v3.4.0+incompatible
go: downloading periph.io/x/periph v3.4.0+incompatible
go: extracting periph.io/x/periph v3.4.0+incompatible

Expected behavior
The latest version should be fetched, which at the time of writing is v3.6.1.

Platform (please complete the following information):

• OS: Windows 10 x64 1903
• Go: 1.12.7

[maruel]

I was discussing this on the slack channel. My current thinking is:

• Remove go.mod and go.sum and do a release
• Add it back in v4 and do a full conversion. That means a recent Go version will be required.

[hassiexx]

👍

[maruel]

Fixed in 8dc522f. Released v3.6.2.