ci: fix/improve GHA builds

[ralphlange]

• windows2019 -> windows 2022
• macos-12 -> macos-latest
• add RTEMS 5.1/686 qemu build

[simon-ess]

The changes look good but the tests are failing 🫤

[ralphlange]

This is why I was tagging it as "still in progress"...

[ralphlange]

Here we go.

[ralphlange]

"Hostname check"?
@simon-ess: Do you know what that means?

[simon-ess]

Good question. The test that is failing is a bit suspicious: as I recall we wanted to confirm that the metadata from caputlog reported the hostname correctly; however, on mac os there was an issue with hostname casing. But I don't know why it is failing now...

I can try run the test locally and see what's up?

[ralphlange]

    // Test hostname
    char hostname[1024];
    gethostname(hostname, 1024);

    // asLibRoutines changes the hostnames to lower-case; some OSs are not so kind.
    testOk(!epicsStrCaseCmp(hostname, jsonParser.host.c_str()),
            "%s - %s", testPrefix, "Hostname check");

I don't understand the aim of this test, and the comment is not helping.

[ralphlange]

Anyway - the failure is not related to this PR.

[ralphlange]

I don't understand the aim of this test, and the comment is not helping.

So caPutLog reports a hostname that is different from what gethostname() returns.
Too bad that neither of them is part of the test failure message.

[simon-ess]

That's pretty fair; each of the tests in there suffers from the same problem. I'll create an issue.

[ralphlange]

Note that the tests in my fork on the same commit (!!) passed.
https://github.com/ralphlange/caPutLog/actions/runs/19629101503

[simon-ess]

Running the tests locally for me passes... 🙃

[ralphlange]

String length!
https://github.com/ralphlange/caPutLog/actions/runs/19634441236/job/56221652006

[ralphlange]

Please merge this - the CI changes are fine, I think.