phpunit: Remove unnecessary uses of @before, @after, etc (#42706)

Back when we still supported PHP <=7.1, we had to add these in a lot of
places to work around the fact that PHPUnit 8 started declaring a `void`
return type on `setUp()`, `tearDown()`, and so on, which 7.1 and earler
don't support.

But we've since dropped support for PHP <7.2, so we can swtich back to
the normal functions. It's more straightforward to do that than to start
adding attributes (`#[Before]` and such) for PHPUnit 11+ where the
annotations are deprecated.

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/14085626545

Upstream-Ref: Automattic/jetpack@617a716

Author: anomiex

composer.json

@@ -8,8 +8,8 @@
 	},
 	"require-dev": {
 		"yoast/phpunit-polyfills": "^3.0.0",
-		"automattic/jetpack-changelogger": "^6.0.2",
-		"automattic/phpunit-select-config": "^1.0.1"
+		"automattic/jetpack-changelogger": "^6.0.3-alpha",
+		"automattic/phpunit-select-config": "^1.0.2-alpha"
 	},
 	"autoload": {
 		"classmap": [

composer.lock

@@ -8,8 +8,8 @@
 	},
 	"require-dev": {
 		"yoast/phpunit-polyfills": "^3.0.0",
-		"automattic/jetpack-changelogger": "^6.0.2",
-		"automattic/phpunit-select-config": "^1.0.1"
+		"automattic/jetpack-changelogger": "^6.0.3-alpha",
+		"automattic/phpunit-select-config": "^1.0.2-alpha"
 	},
 	"suggest": {
 		"automattic/jetpack-autoloader": "Allow for better interoperability with other plugins that use this package."

vendor/automattic/jetpack-device-detection/composer.json

@@ -7,14 +7,14 @@
             "dist": {
                 "type": "path",
                 "url": "/tmp/jetpack-build/Automattic/jetpack-device-detection",
-                "reference": "d77d52c19e341901cd1741da3b4102f686da73c3"
+                "reference": "e025a924ee64dc71de069473482bd169252f364c"
             },
             "require": {
                 "php": ">=7.2"
             },
             "require-dev": {
-                "automattic/jetpack-changelogger": "^6.0.2",
-                "automattic/phpunit-select-config": "^1.0.1",
+                "automattic/jetpack-changelogger": "^6.0.3-alpha",
+                "automattic/phpunit-select-config": "^1.0.2-alpha",
                 "yoast/phpunit-polyfills": "^3.0.0"
             },
             "suggest": {

vendor/composer/installed.json

@@ -13,7 +13,7 @@
         'automattic/jetpack-device-detection' => array(
             'pretty_version' => '3.0.5',
             'version' => '3.0.5.0',
-            'reference' => 'd77d52c19e341901cd1741da3b4102f686da73c3',
+            'reference' => 'e025a924ee64dc71de069473482bd169252f364c',
             'type' => 'jetpack-library',
             'install_path' => __DIR__ . '/../automattic/jetpack-device-detection',
             'aliases' => array(),