Update ENTRYPOINT instruction in Dockerfile (#21)

In the Dockerfile, the ENTRYPOINT instruction has been updated to
simplify the command's syntax. The change results in more direct
execution without the need for "sh" and "-c". The modification now uses
"/app/csv-blueprint" directly, resulting in improved containerization
and execution efficiency.

Dockerfile

@@ -28,4 +28,4 @@ RUN chmod +x /app/csv-blueprint
 # Color output by default
 ENV TERM_PROGRAM=Hyper
 
-ENTRYPOINT ["sh", "-c", "/app/csv-blueprint"]
+ENTRYPOINT ["/app/csv-blueprint"]