feat(dockerize-app): Add valid dockerfile

Author: Yaroslav Voitenko

Dockerfile

@@ -3,4 +3,6 @@ FROM php:8.3-cli
 COPY src/builds/whp /bin/
 RUN chmod +x /bin/whp
 
-ENTRYPOINT /bin/whp
+RUN apt-get update && apt-get install -y tini
+
+ENTRYPOINT ["/usr/bin/tini", "--", "/bin/whp"]