deps: upgrade twig/intl-extra and slim

Upgraded twig/intl-extra to remove deprecation message in php 8.3

composer.json

@@ -1,6 +1,6 @@
 {
     "require": {
-        "slim/slim": "4.*",
+        "slim/slim": "^4.12",
         "slim/psr7": "^1.5",
         "slim/twig-view": "^3.3",
         "symfony/yaml": "^6.0",
@@ -9,7 +9,7 @@
         "adbario/php-dot-notation": "^3.1",
         "boronczyk/localization-middleware": "^2.0",
         "erusev/parsedown": "^1.7",
-        "twig/intl-extra": "^3.4"
+        "twig/intl-extra": "^3.8"
     },
     "autoload": {
       "psr-4": {