[Beta Tester] Fix build step (#50518)

* build project as well

* Add changefile(s) from automation for the following project(s): woocommerce-beta-tester

---------

Co-authored-by: github-actions <github-actions@github.com>

plugins/woocommerce-beta-tester/changelog/50518-fix-beta-tester-build

@@ -0,0 +1,4 @@
+Significance: patch
+Type: tweak
+Comment: Fix build step
+

plugins/woocommerce-beta-tester/package.json

@@ -64,7 +64,7 @@
 		"build_step": "pnpm run build:zip"
 	},
 	"scripts": {
-		"build": "pnpm --if-present --workspace-concurrency=Infinity --stream --filter=\"$npm_package_name...\" '/^build:project:.*$/'",
+		"build": "pnpm --if-present --workspace-concurrency=Infinity --stream --filter=\"$npm_package_name...\" '/^build:project:.*$/' && pnpm build:project",
 		"build:project": "pnpm build:admin && pnpm uglify",
 		"build:admin": "wp-scripts build",
 		"build:dev": "pnpm lint:js && pnpm build",