fix: update dependencies to support @wordpress/scripts (#104)

BREAKING CHANGE: Updates dependencies for compatibility with WordPress 6.6.*, but breaks JS in WordPress 6.5.* and below. If you need support for WP 6.5.*, please do not upgrade to this new major version.

* chore: refactor for newspack-scripts dependency updates

* chore: update composer

* fix: peer dependencies

* chore: update newspack-scripts to v5.6.0-alpha.3

* chore: update newspack-scripts to v5.6.0-alpha.4

* chore: remove unnecessary prettier config file

* chore: update newspack-scripts to v5.6.0-alpha.7

* fix: update phpcs.xml

* chore: bump newspack-scripts to v5.5.2

.nvmrc

@@ -1 +1 @@
-16.11.1
+lts/*

composer.json

@@ -15,11 +15,17 @@
 		"classmap": [
 			"./includes"
 		],
-		"files": ["./includes/constants.php"]
+		"files": [
+			"./includes/constants.php"
+		]
 	},
 	"config": {
+		"platform": {
+			"php": "8.0"
+		},
 		"allow-plugins": {
+			"composer/installers": true,
 			"dealerdirect/phpcodesniffer-composer-installer": true
 		}
 	}
-}
+}