fix: do not return error on docker prune

There are still some issues, I'm removing errors on it to see if it acts better

src/build_platform/local_docker.rs

@@ -540,7 +540,7 @@ fn docker_prune_images(envs: Vec<(&str, &str)>) -> Result<(), SimpleError> {
             Duration::minutes(BUILD_DURATION_TIMEOUT_MIN),
         ) {
             Ok(_) => {}
-            Err(e) => return Err(e),
+            Err(e) => error!("error while puring {}. {}", prune, e.message),
         };
     }