Merge pull request #70 from kozlice/compatibility/support-psr-cache-v2

[Compatibility] Support psr/cache 2.0

Author: dbu

composer.json

@@ -12,7 +12,7 @@
     ],
     "require": {
         "php": "^7.1 || ^8.0",
-        "psr/cache": "^1.0",
+        "psr/cache": "^1.0 || ^2.0",
         "php-http/client-common": "^1.9 || ^2.0",
         "php-http/message-factory": "^1.0",
         "symfony/options-resolver": "^2.6 || ^3.0 || ^4.0 || ^5.0"