feat(docker): add healthcheck

Dockerfile.multiarches

@@ -54,3 +54,5 @@ COPY var/helper-actions/* /usr/bin/
 USER olivetin
 
 ENTRYPOINT [ "/usr/bin/OliveTin" ]
+
+HEALTHCHECK CMD ["curl", "-fsS", "http://127.0.0.1:1337/readyz"]

Dockerfile.singlearch

@@ -46,3 +46,5 @@ COPY var/helper-actions/* /usr/bin/
 USER olivetin
 
 ENTRYPOINT [ "/usr/bin/OliveTin" ]
+
+HEALTHCHECK CMD ["curl", "-fsS", "http://127.0.0.1:1337/readyz"]