dev-go/go-tools: Update dev-go/go-tools as needed for go-1.20.

This CL is doing the following:
 - Update go-tools to required commit mentioned in go.mod for go-1.20:
   https://screenshot.googleplex.com/9HXGCaH8qUqzPYr
 - There is no v0.3.1 tag available in go-tools repository. So, change
   the ebuild file version to 0.0.1 and use the source at the commit
   mentioned in go.mod

BUG=b/267649872
TEST=presubmit
RELEASE_NOTE=Update dev-go/go-tools to
070db2996ebe3aa00667288f8e5749e867deeb39.

Change-Id: I38de0a92e80566cfb75864ba909cb63c68774843
Reviewed-on: https://cos-review.googlesource.com/c/third_party/overlays/chromiumos-overlay/+/42448
Reviewed-by: Oleksandr Tymoshenko <ovt@google.com>
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
4 files changed