Move nette/caching to dev dependencies and lower it's minimal version

Author: jankonas

composer.json

@@ -22,12 +22,12 @@
 		"nette/di": "^2.4.15@dev",
 		"kdyby/strict-objects": "^1.0",
 		"monolog/monolog": "^1.10",
-		"tracy/tracy": "^2.6@dev",
-		"nette/caching": "3.0@dev"
+		"tracy/tracy": "^2.6@dev"
 	},
 	"require-dev": {
 		"nette/application": "^2.4@dev",
 		"nette/bootstrap": "^2.4@dev",
+		"nette/caching": "^2.5@dev",
 		"nette/http": "^2.4@dev",
 		"nette/tester": "~2.1@dev",
 		"phpstan/phpstan-shim": "^0.11.0@dev"