Bump dev dependencies

Signed-off-by: George Steel <george@net-glue.co.uk>

Author: gsteel

composer.json

@@ -29,8 +29,8 @@
     },
     "require-dev": {
         "laminas/laminas-coding-standard": "~3.1.0",
-        "phpunit/phpunit": "^11.5.46",
-        "vimeo/psalm": "^6.14.3"
+        "phpunit/phpunit": "^11.5.55",
+        "vimeo/psalm": "^6.16.1"
     },
     "autoload": {
         "psr-4": {