ci: dotnet pack release build

[jcsawyer]

This PR

• Adds release configuration parameter to dotnet pack

Related Issues

Fixes #345

Notes

Using dotnet publish or dotnet pack compiles assemblies in debug mode unless you explicitly specify -c release. So the package is compiled without optimizations.

This is failing my builds which check for debug assemblies.
More info: https://garcia.in/posts/2021/pitfalls-of-unoptimized-nuget-packages/

Follow-up Tasks

How to test

[beeme1mr]

Hey @jcsawyer, thanks for the PR and the link to the blog. Could you please sign off your commits? It's a requirement from the CNCF for accepting PRs.

To add your Signed-off-by line to every commit in this branch:

Ensure you have a local copy of your branch by checking out the pull request locally via command line.
In your local branch, run: git rebase HEAD~1 --signoff
Force push your changes to overwrite the branch: git push --force-with-lease origin main

We can safely ignore the code coverage alert. I'm surprised changing a GitHub action has any impact on test coverage. We must not have our code coverage tool configured correctly.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.49%. Comparing base (1b5a0a9) to head (473793b).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #344   +/-   ##
=======================================
  Coverage   85.49%   85.49%           
=======================================
  Files          38       38           
  Lines        1517     1517           
  Branches      154      154           
=======================================
  Hits         1297     1297           
  Misses        188      188           
  Partials       32       32           

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