build: prepare plugins for using internal libraries by default

Signed-off-by: Bart Jaskulski <bjaskulski@protonmail.com>

composer.json

@@ -35,7 +35,10 @@
 			"kylekatarnls/update-helper": true,
 			"phpstan/extension-installer": true
 		},
-		"platform-check": false
+		"platform-check": false,
+		"gitlab-domains": [
+			"gitlab.wpdesk.dev"
+		]
 	},
 	"prefer-stable": true,
 	"minimum-stability": "stable",
@@ -77,5 +80,11 @@
 		"phpunit-unit-coverage": "phpunit --configuration phpunit-unit.xml --coverage-html build-coverage",
 		"phpunit-integration": "phpunit --configuration phpunit-integration.xml --coverage-text --colors=never",
 		"docs": "apigen generate"
+	},
+	"repositories": {
+		"wpdesk": {
+			"type": "composer",
+			"url": "https://gitlab.wpdesk.dev/api/v4/group/wpdesk/-/packages/composer/"
+		}
 	}
 }