feat: use new action metadata format

Author: byCedric

Dockerfile

@@ -1,10 +1,5 @@
 FROM bycedric/expo-cli:3
 
-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"
-
 COPY entrypoint.sh LICENSE.md README.md /
 
 # increase node's default memory limit to 4gb

action.yml

@@ -0,0 +1,10 @@
+---
+name: Expo GitHub Action
+author: Cedric van Putten <me+expo-action@bycedric.com>
+description: Use Expo CLI in your GitHub Actions workflow.
+branding:
+  icon: terminal
+  color: gray-dark
+runs:
+  using: docker
+  image: Dockerfile