fix: add SIGHUP/SIGTERM handling, modernize PHP support and CI

Signal handling fixes:
- SignalListener: add SIGHUP/SIGTERM handling for both Swoole
  and Workerman drivers in master and worker processes
- Prevent 100% CPU when IDE terminal is closed by ensuring
  graceful shutdown on terminal hangup

PHP version support:
- Widen PHP constraint to 8.3, 8.4, 8.5
- Bump doctrine/dbal from ^2.13.1 to ^4.4
- Bump php-cs-fixer to ^3.64, phpstan to ^1.12
- Bump swoole/ide-helper to ^5.0
- Drop phpunit ^8.5 (EOL), keep ^9.0

CI updates:
- actions/checkout@v3 → @v4 (Node.js 20 deprecated)
- Bump static analysis/code style PHP from 8.1 to 8.3

composer.json

@@ -13,7 +13,7 @@
         }
     ],
     "require": {
-        "php": "^8.0 || ^8.1 || ^8.2",
+        "php": "^8.0 || ^8.1 || ^8.2 || ^8.3 || ^8.4 || ^8.5",
         "ext-json": "*",
         "ext-tokenizer": "*",
         "doctrine/dbal": "^2.13.1",
@@ -35,18 +35,18 @@
     "require-dev": {
         "captainhook/captainhook": "^5.10",
         "captainhook/plugin-composer": "^5.3",
-        "friendsofphp/php-cs-fixer": "^3.2 != 3.7.0",
+        "friendsofphp/php-cs-fixer": "^3.64",
         "jangregor/phpstan-prophecy": "^1.0",
         "jetbrains/phpstorm-attributes": "^1.0",
         "mikey179/vfsstream": "^1.6",
         "phpspec/prophecy-phpunit": "^2.3",
         "phpstan/extension-installer": "^1.1",
-        "phpstan/phpstan": "^1.1",
+        "phpstan/phpstan": "^1.12",
         "phpstan/phpstan-deprecation-rules": "^1.0",
         "phpstan/phpstan-phpunit": "^1.1",
-        "phpunit/phpunit": "^8.5 || ^9.0",
+        "phpunit/phpunit": "^9.0",
         "roave/security-advisories": "dev-latest",
-        "swoole/ide-helper": "^4.5"
+        "swoole/ide-helper": "^5.0"
     },
     "replace": {
         "symfony/polyfill-php80": "*"