The codecov workflow in the CI pipeline has been adjusted to produce more accurate coverage profiles. Previously covered but now-ignored code has been removed from the coverage profile by filtering out desired patterns with 'grep'.
Added a new workflow in '.github/workflows/codecov.yml' that runs on all three OS: Ubuntu, MacOS, and Windows with '1.22' version of Go. This workflow performs a test coverage check and then uploads the coverage data to Codecov. The workflow is activated on every 'push' or 'pull request' to the 'main' branch.