Merge pull request #74 from linawolf/update-v13

[!!!][TASK] Allow TYPO3 v13, drop TYPO3 v11 support

Configuration/Sets/FormDoubleOptIn/config.yaml

@@ -0,0 +1,4 @@
+name: tritum/form-element-linked-checkbox
+label: "Form: Linked checkbox element"
+dependencies:
+  - typo3/form

Configuration/Sets/FormDoubleOptIn/setup.typoscript

@@ -0,0 +1 @@
+@import 'EXT:form_element_linked_checkbox/Configuration/TypoScript/setup.typoscript'

README.md

@@ -23,8 +23,11 @@ use this template.
 
 ## Preferred Installation
 
-1. Require the extension via composer.
-2. Add the static TypoScript configuration to your TypoScript template.
+#. Require the extension via composer.
+#. Add the site set `tritum/form-element-linked-checkbox` to the dependencies
+   of your site packages site set (TYPO3 v13 and above).
+#. Or add the static TypoScript configuration to your TypoScript template
+   (TYPO3 v12 and below).
 
 ## Customization
 

composer.json

@@ -20,9 +20,9 @@
 	"require": {
 		"php": "^7.4 || ^8.0",
 		"symfony/polyfill-php80": "^1.15",
-		"typo3/cms-core": "^11.5.0 || ^12.4.0",
-		"typo3/cms-form": "^11.5.0 || ^12.4.0",
-		"typo3/cms-frontend": "^11.5.0 || ^12.4.0"
+		"typo3/cms-core": "^12.4.0 || ^13.4.0",
+		"typo3/cms-form": "^12.4.0 || ^13.4.0",
+		"typo3/cms-frontend": "^12.4.0 || ^13.4.0"
 	},
 	"require-dev": {
 		"armin/editorconfig-cli": "^1.5",