ci: make TestMailpit and TestProjectPortOverride more forgiving of Rancher Desktop, fixes #5578

[rfay]

The Issue

• Rancher tests are failing TestMailpit (intermittent?) #5578

TestMailpit fails intermittently on Rancher Desktop

This may be due to the mailpit API coming up after our healthcheck says it should be ready, because we're not polling the API.

How This PR Solves The Issue

Wait in the test a few seconds if necessary

It's possible this could also be fixed by adding more extensive healthcheck.sh to check the mailpit API, but that seems like overkill for something that is not used a huge amount.

[github-actions]

Download the artifacts for this pull request:

• all-ddev-executables.zip
• ddev-linux-amd64.zip
• ddev-linux-arm64.zip
• ddev-macos-amd64.zip
• ddev-macos-arm64.zip
• ddev-windows-amd64-installer.zip

See Testing a PR

[rfay]

TestProjectPortOverride is also flaky on Rancher at this line, failed here: https://buildkite.com/ddev/macos-rancher-desktop/builds/120#018c22cd-9094-41f8-9452-60e03ce15bcd

ddev/pkg/ddevapp/router_test.go

Line 116 in 7e872a7

assert.True(netutil.IsPortActive(app.RouterHTTPPort), "port "+app.RouterHTTPPort+" should be active")

[rfay]

This seems to be working OK for TestMailpit at this point.

However, TestProjectPortOverride often fails on rancher. It's possible there's something wrong with our test runner[s] and the port is still occupied somehow as well.

[rfay]

It looks like the healthcheck for traefik may also be checking not-exactly the right thing; it waits for the web server, but that's not the same as all the work being done. We may be able to improve the traefik healthcheck at some point, but 4e58ac2 just tries to give the test a little more time.

[rfay]

I think it worked!

[rfay]

This is tests only, so I'm going to go ahead and pull it as it can stop the bleeding on some of the other PRs. We'll still have bleeding on Colima tests though.

[rfay]

If you have things you'd rather do with this @stasadev they're welcome as followup.

[stasadev]

I think it is good enough for tests.