Update entrypoint.sh

Update "show versions" to use php-fpm83

docker/entrypoint.sh

@@ -6,7 +6,7 @@ echo "Running version ${VERSION} commit ${COMMIT} built on ${CREATED}"
 
 # Show versions
 echo "supervisord version: $(supervisord version)"
-php-fpm82 -v | head -n 1
+php-fpm83 -v | head -n 1
 nginx -v
 
 # Database creation