[8.19](backport #4983) Add basic fips cloudE2E test

[mergify]

What is the problem this PR solves?

Verify that FIPS capable artifacts work in cloud deployments.
Correct openapi status endpoint return values.

How does this PR solve the problem?

Add buildkite step to run cloud e2e tests with a FIPS capable image.
Add a smoke test to the cloudE2E testsuite that ensures the deployed fleet-server has basic functionality, and that fleet-server's crypto features (the ReplacementToken) works as expected.
Change the status attribute in status response bodies to be in all caps.

---

This is an automatic backport of pull request #4983 done by Mergify.

[mergify]

Cherry-pick of 11b45c5 has failed:

On branch mergify/bp/8.19/pr-4983
Your branch is up to date with 'origin/8.19'.

You are currently cherry-picking commit 11b45c5.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   .buildkite/hooks/pre-command
	modified:   .buildkite/pipeline.yml
	modified:   internal/pkg/api/openapi.gen.go
	modified:   internal/pkg/server/fleet_integration_test.go
	modified:   magefile.go
	modified:   model/openapi.yml
	modified:   pkg/api/types.gen.go
	new file:   testing/cloude2e/cloude2e_test.go
	deleted:    testing/cloude2e/status_test.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   testing/go.mod
	both modified:   testing/go.sum

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[prodsecmachine]

🎉 Snyk checks have passed. No issues have been found so far.

✅ security/snyk check is complete. No issues have been found. (View Details)

✅ license/snyk check is complete. No issues have been found. (View Details)

[elastic-sonarqube]

Quality Gate passed

Issues
0 New issues
0 Fixed issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarQube