test: enable -race flag for running unit tests in CI

[lucasrod16]

Steps to reproduce

1. On the main branch of the repository, run all of the unit tests with the -race flag:

go test -failfast -v -race -coverprofile=coverage.out -covermode=atomic $(go list ./... | grep -v '^github.com/defenseunicorns/zarf/src/test' | grep -v 'github.com/defenseunicorns/zarf/src/extensions/bigbang/test')

Expected result

All unit tests pass

Actual Result

Unit tests fail due to data races

Visual Proof (screenshots, videos, text, etc)

[lucasrod16]

pterm's SpinnerPrinter and ProgressbarPrinter are not thread safe:

Better concurrency pattern for LivePrinters #439
Data race on pterm.SpinnerPrinter #482

There is an open draft PR that is supposed to fix most of these issues, but it appears to be stale:

Fix most data race issues & enable in CI tests #447

This means our tests will fail with the -race flag, whether run sequentially or concurrently, due to the bugs mentioned above.

I will keep this issue open to track any progress on fixing the concurrency issues in pterm.