go.mod: update neo-go version #370

	name: Go
	on: [push]
	jobs:

	test:
	name: test
	runs-on: ubuntu-latest
	strategy:
	matrix:
	go: [ '1.14.x', '1.15.x', '1.16.x']
	steps:

	- name: Setup go
	uses: actions/setup-go@v2
	with:
	go-version: ${{ matrix.go }}

	- name: Check out code into the Go module directory
	uses: actions/checkout@v2

	- name: Get dependencies
	run: \|
	go get -u -v golang.org/x/lint/golint
	go mod tidy -v
	- name: Linter
	run: golint -set_exit_status ./...

	- name: Tests
	run: go test -coverprofile=coverage.txt -covermode=atomic ./...

	- name: Codecov
	env:
	CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
	run: bash <(curl -s https://codecov.io/bash)

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