Upgrade dependencies to latest versions available for PHP 8.1 (#108)

This ensures the published `.phar` versions use the latest available
versions of dependencies available today (and compatible with PHP 8.1+).
At the same time, it should remove any dependency blockers users might
have when installing `slimdump` as a Composer dependency alongside their
projects.

Author: mpdude

composer.json

@@ -19,14 +19,14 @@
         "ext-SimpleXML": "*",
         "ext-libxml": "*",
         "ext-pdo": "*",
-        "doctrine/dbal": "^2.5.2",
-        "doctrine/event-manager": "^1.0",
-        "fakerphp/faker": "^1.6",
-        "symfony/console": "^4.0|^5.0|^6.0",
-        "symfony/service-contracts": "^2.1.2"
+        "doctrine/dbal": "^2.13|^3.0",
+        "doctrine/event-manager": "^1.0|^2.0",
+        "fakerphp/faker": "^1.14",
+        "symfony/console": "^4.0|^5.0|^6.0|^7.0",
+        "symfony/service-contracts": "^2.1.2|^3.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^8.5|^9.5"
+        "phpunit/phpunit": "^8.5|^9.5|^10.0"
     },
     "autoload": {
         "psr-4": {