Add XHPROF_FLAGS_CPU for xhprof, cleanup for ddev get

[stasadev]

The Issue

• Error when XHPROF_FLAGS_CPU is removed from xhprof_enable configuration buggregator/server#230
• ErrorException: Undefined array key "cpu" in /app/app/modules/Profiler/Application/Handlers/CalculateDiffsBetweenEdges.php at line 23 [] [] buggregator/server#259
• fix: make xhprof faster, fixes #5712 ddev/ddev#5721 (comment)

How This PR Solves The Issue

Adds XHPROF_FLAGS_CPU flag.
Cleanup for ddev get

Manual Testing Instructions

mkdir xhprof-test && cd xhprof-test
ddev config --auto
ddev add-on get https://github.com/iljapolanskis/ddev-buggregator/tarball/main
ddev composer require --dev spiral-packages/profiler
ddev restart

Using https://docs.buggregator.dev/config/xhprof.html#vanilla-php

Create index.php:

<?php

require_once __DIR__."/vendor/autoload.php";

use SpiralPackages\Profiler\Profiler;
use SpiralPackages\Profiler\DriverFactory;
use SpiralPackages\Profiler\Storage\WebStorage;
use Symfony\Component\HttpClient\NativeHttpClient;

$storage = new WebStorage(
    new NativeHttpClient(),
    'http://buggregator:8000/api/profiler/store',
);

$driver = DriverFactory::detect();

$profiler = new Profiler(
    storage: $storage,
    driver: $driver,
    appName: 'My super app',
    tags: [
        // global tags
        'env' => 'local',
    ]
);

$profiler->start(ignoredFunctions: []);

echo 'Hello World';

$profiler->end(tags: [
    // Tags for specific requests
]);

And:

ddev xhprof on
ddev launch
ddev launch :8000/#profiler

The data from xhprof should be here:

And click it:

[stasadev]

@iljapolanskis, this change also needs a new release, thank you!