chore: Remove php versions no longer supported (removed php 7.4 constraint and set it to 8.1).

Signed-off-by: Johannes Tegnér <[email protected]>

Author: Johannestegner

composer.json

@@ -15,13 +15,13 @@
         }
     ],
     "require": {
-        "php": ">=7.4.2",
-        "psr/container": "^1.0|^2.0",
-        "psr/cache": "^1.0|^2.0|^3.0",
+        "php": ">=8.1",
+        "psr/container": "^2.0",
+        "psr/cache": "^3.0",
         "psr/http-client": "^1.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.5",
+        "phpunit/phpunit": "^9.6",
         "squizlabs/php_codesniffer": "^3.7"
     },
     "autoload": {