chore: raise minimum Guzzle to ^7.5 to avoid advisory flags on 7.0-7.4.x

Author: drdmitry

composer.json

@@ -5,10 +5,10 @@
     "keywords": ["convert", "conversion", "conversiontools", "convert files", "client", "api", "sdk"],
     "homepage": "https://github.com/conversiontools/conversiontools-php",
     "license": "MIT",
-    "version": "2.0.0",
+    "version": "2.0.1",
     "require": {
         "php": ">=8.1",
-        "guzzlehttp/guzzle": "^7.0"
+        "guzzlehttp/guzzle": "^7.5"
     },
     "require-dev": {
         "phpunit/phpunit": "^13.0"