💡Pass in context to `provide` instead of using `getContext`

[runspired]

low(ish) priority

ember-provide-consume-context/ember-provide-consume-context/src/test-support/index.ts

Line 29 in 4d9835e

const context = getContext() as TestContext | undefined;

getContext as a pattern is one (of several) things that is preventing ember applications from running tests concurrently as it assumes only a single global test context exists at any one time.

Instead of assuming the global, we should prefer a passed in context.