build: Upgrade to go 1.21 and linter 1.54.2

[lenny-goodell]

If your build fails due to your commit message not passing the build checks, please review the guidelines here: https://github.com/edgexfoundry/go-mod-secrets/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
• I have fully tested (add details below) this the new feature or bug fix (if not, why?) N/A
• I have opened a PR for the related docs change (if not, why?) N/A

Testing Instructions

New Dependency Instructions (If applicable)

[codecov-commenter]

Codecov Report

Merging #226 (aaa7100) into main (70c552f) will not change coverage.
The diff coverage is n/a.

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

@@           Coverage Diff           @@
##             main     #226   +/-   ##
=======================================
  Coverage   70.66%   70.66%           
=======================================
  Files          18       18           
  Lines        1285     1285           
=======================================
  Hits          908      908           
  Misses        291      291           
  Partials       86       86