[TASK] Prepare TYPO3 9LTS upgrade

composer.json

@@ -9,8 +9,8 @@
 		"issues": "https://gitlab.sgalinski.de/typo3/tinymce/issues"
 	},
 	"require": {
-		"php": ">=7.0.0 <7.2",
-		"typo3/cms-core": "7.6.0 - 8.7.99"
+		"php": ">=7.0.0 <7.4",
+		"typo3/cms-core": "^7.6.0 || ^8.7.0 || ^9.5.1"
 	},
 	"replace": {
 		"tinymce": "self.version",

ext_emconf.php

@@ -20,8 +20,8 @@ $EM_CONF[$_EXTKEY] = [
 		[
 			'depends' =>
 				[
-					'php' => '7.0.0-7.1.99',
-					'typo3' => '7.6.0-8.7.99',
+					'php' => '7.0.0-7.3.99',
+					'typo3' => '7.6.0-9.5.99',
 				],
 			'conflicts' => [],
 			'suggests' => [],