use caret operator where possible

VasekPurchart · VasekPurchart · commit abf57b9cffd1 · 2023-03-03T13:01:35.000+01:00
diff --git a/composer.json b/composer.json
@@ -11,10 +11,10 @@
 		}
 	],
 	"require": {
-		"php": "~7.2",
+		"php": "^7.2",
 		"ext-tokenizer": "*",
 		"squizlabs/php_codesniffer": "~3.5.5",
-		"slevomat/coding-standard": "~6.0"
+		"slevomat/coding-standard": "^6.0"
 	},
 	"require-dev": {
 		"phing/phing": "2.17.2",
