refactor: remove unofficial from the name

Author: byCedric

Dockerfile

@@ -1,6 +1,6 @@
 FROM bycedric/ci-expo:2
 
-LABEL com.github.actions.name="Expo CLI (unofficial)"
+LABEL com.github.actions.name="Expo CLI"
 LABEL com.github.actions.description="Use any Expo CLI command in your GitHub Actions workflow."
 LABEL com.github.actions.icon="terminal"
 LABEL com.github.actions.color="gray-dark"