fix: change entrypoint to execut the binary

Dockerfile

@@ -1,6 +1,3 @@
 FROM alpine:latest
-
+ENTRYPOINT ["/usr/bin/pingme"]
-ENTRYPOINT ["entrypoint.sh"]
-COPY scripts/entrypoint.sh /usr/bin/entrypoint.sh
-RUN chmod +x /usr/bin/entrypoint.sh
 COPY pingme /usr/bin/pingme

scripts/entrypoint.sh

@@ -1,6 +0,0 @@
-#!/usr/bin/env sh
-
-[ "$PINGME_USE_SERVICE" ]
-: ${PINGME_USE_SERVICE:=""}
-
-pingme $PINGME_USE_SERVICE