Fix missing entrypoint

Entrypoint was missing on the GraalVM 21 image, this is now fixed.

Author: garrettsummerfi3ld

java/21/graalvm/Dockerfile

@@ -48,7 +48,7 @@ WORKDIR     /home/container
 
 STOPSIGNAL SIGINT
 
-##COPY        --chown=container:container ./../../entrypoint.sh /entrypoint.sh
-##RUN         chmod +x /entrypoint.sh
-##ENTRYPOINT    ["/usr/bin/tini", "-g", "--"]
-##CMD         ["/entrypoint.sh"]
+COPY        --chown=container:container ./../../entrypoint.sh /entrypoint.sh
+RUN         chmod +x /entrypoint.sh
+ENTRYPOINT    ["/usr/bin/tini", "-g", "--"]
+CMD         ["/entrypoint.sh"]