dockerTools: fix hash to accomodate the pullImage revert

Changed files
+1 -1
pkgs
build-support
docker
+1 -1
pkgs/build-support/docker/examples.nix
···
imageName = "nixos/nix";
imageTag = "1.11";
# this hash will need change if the tag is updated at docker hub
-
sha256 = "1gk4bq05vl3rj3mh4mlbl4iicgndmimlv8jvkhdk4hrv0r44bwr3";
+
sha256 = "0nncn9pn5miygan51w34c2p9qssi96jgsaqv44dxxdprc8pg0g83";
};
# 5. example of multiple contents, emacs and vi happily coexisting