CLOUDP-192976: Unit test everything but int and e2e

[josvazg]

This is an alternative to #1068 avoiding the use of build tags to achieve the same main goal.

It is a simpler change and we keep the project build tag free using explicit env vars to activate the int and e2e tests instead.

Uses 2 tricks:

• Use go list ./... and remove the test/int and test/e2e tests from the unit test set explicitly.
• Allow go test ./... to run unmolested by requiring a env var to explicitly enable the int or e2e tests.
  • Doing AKO_INT_TEST=1 enables int tests.
  • AKO_E2E_TEST=1 enables e2e tests.

All Submissions:

• Have you signed our CLA?
• Put closes #XXXX in your comment to auto-close the issue that your PR fixes (if there is one).
• Update docs/release-notes/release-notes.md if your changes should be included in the release notes for the next release.

[github-actions]

https://app.codecov.io/github/mongodb/mongodb-atlas-kubernetes/commit/9e15097a1381e59edddd1ab350a4b7b5f37230bb

[josvazg]

I might send an update for this, I think we can even get go test ./... to work by skipping the e2e and int test unless they are passed some env var.

[josvazg]

Note if we take this route I need to make some changes to the wording at #1066

[josvazg]

Will wait for #1079 and rebase after it lands

[igor-karpukhin]

Looks good in general 👍 One nit regarding ENV variables verification