Update utopia-php/pools to dev-main for pool exhaustion fix

Pull in the fix from utopia-php/pools#29 which improves pool exhaustion
resilience by retrying on connection creation failure and adds diagnostic
info (active/idle counts) to error messages. This addresses CLOUD-3K4N.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: claudear

composer.json

@@ -28,7 +28,7 @@
         "php-amqplib/php-amqplib": "^3.7",
         "utopia-php/servers": "0.2.*",
         "utopia-php/fetch": "0.5.*",
-        "utopia-php/pools": "1.*",
+        "utopia-php/pools": "dev-main as 1.0.4",
         "utopia-php/telemetry": "0.2.*",
         "utopia-php/validators": "0.2.*"
     },