chore: Update composer (PHP version and dependencies of NC30)

* Nextcloud 30 uses PHP 8.1+
* Adjusted sabre/dav version used

Signed-off-by: Ferdinand Thiessen <opensource@fthiessen.de>

composer.json

@@ -1,28 +1,28 @@
 {
-    "name": "nextcloud/files_lock",
-    "require-dev": {
-        "phpunit/phpunit": "^9.5",
-        "nextcloud/coding-standard": "^1.0",
-        "psalm/phar": "^5.2",
-        "sabre/dav": "^4.3",
-        "nextcloud/ocp": "dev-master"
-    },
+		"name": "nextcloud/files_lock",
+		"require-dev": {
+				"phpunit/phpunit": "^9.5",
+				"nextcloud/coding-standard": "^1.2",
+				"psalm/phar": "^5.25",
+				"sabre/dav": "^4.6",
+				"nextcloud/ocp": "dev-master"
+		},
 	"config": {
 		"platform": {
-			"php": "8.0"
+			"php": "8.1"
 		}
 	},
-    "license": "AGPL",
-    "require": {
-      "php": "^8.0"
-    },
-    "scripts": {
-      "lint": "find . -name \\*.php -not -path './vendor/*' -print0 | xargs -0 -n1 php -l",
-      "cs:check": "php-cs-fixer fix --dry-run --diff",
-      "cs:fix": "php-cs-fixer fix",
-      "psalm": "psalm.phar",
-      "test:unit": "phpunit -c tests/phpunit.xml"
-    },
+		"license": "AGPL",
+		"require": {
+			"php": "^8.1"
+		},
+		"scripts": {
+			"lint": "find . -name \\*.php -not -path './vendor/*' -print0 | xargs -0 -n1 php -l",
+			"cs:check": "php-cs-fixer fix --dry-run --diff",
+			"cs:fix": "php-cs-fixer fix",
+			"psalm": "psalm.phar",
+			"test:unit": "phpunit -c tests/phpunit.xml"
+		},
 	"autoload-dev": {
 		"psr-4": {
 			"OCP\\": "vendor/nextcloud/ocp/OCP"