build: Upgrade to Go 1.18 and optimize attribution script

[lenny-goodell]

Signed-off-by: Leonard Goodell leonard.goodell@intel.com

If your build fails due to your commit message not passing the build checks, please review the guidelines here: https://github.com/edgexfoundry/edgex-cli/blob/main/.github/Contributing.md

PR Checklist

Please check if your PR fulfills the following requirements:

• I am not introducing a breaking change (if you are, flag in conventional commit message with BREAKING CHANGE: describing the break)
• I am not introducing a new dependency (add notes below if you are)
• I have added unit tests for the new feature or bug fix (if not, why?) N/A for Build PRs
• I have fully tested (add details below) this the new feature or bug fix (if not, why?)
• I have opened a PR for the related docs change (if not, why?) N/A for Build PRs

Testing Instructions

run make test build

New Dependency Instructions (If applicable)

[lenny-goodell]

recheck

[ernestojeda]

recheck