camerad: fix memory leak in create_thumbnail (#2743)
camerad: fix memory leak in create_thumbnail (#2743)

* fix memory leak in create_thumbnail

* free memory returned from jpeg_mem_dest

* OMG
commaai/openpilot,commaai/openpilot,commaai/openpilot,commaai/openpilot,commaai/openpilot,commaai/openpilot