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/device-rfid-llrp-go/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 build test docker

New Dependency Instructions (If applicable)

[codecov-commenter]

Codecov Report

Merging #98 (1d02a79) into main (a275810) will increase coverage by 0.05%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main      #98      +/-   ##
==========================================
+ Coverage   41.08%   41.13%   +0.05%     
==========================================
  Files          21       21              
  Lines        9016     9016              
==========================================
+ Hits         3704     3709       +5     
+ Misses       4142     4139       -3     
+ Partials     1170     1168       -2     

Impacted Files	Coverage Δ
internal/llrp/reader.go	41.24% <0.00%> (+1.10%)	⬆️

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[bill-mahoney]

LGTM