Substrate Companion for rust 1.54 (#3807)
* Substrate Companion for rust 1.54 * CI: run with a staging CI image * Revert "CI: run with a staging CI image" This reverts commit f3b51da0. * CI: debug, again * compilation fixes * tabify * update Substrate * Update .gitlab-ci.yml * CI: add ubuntu-based image with npm Co-authored-by: Denis P <denis.pisarev@parity.io> Co-authored-by: Andronik Ordian <write@reusable.software> Co-authored-by: thiolliere <gui.thiolliere@gmail.com> Co-authored-by: parity-processbot <>