[ci] upgrade to rust 1.41

.gitlab-ci.yml

@@ -78,7 +78,7 @@ skip_ci:
 
 .rust_stable_win64:
   extends: .ci_conditions
-  image: registry.duniter.org/docker/rust/win64-builder:v1.40.0
+  image: registry.duniter.org/docker/rust/win64-builder:v1.41.0
   tags:
     - redshift-docker-runner
   before_script:

README.md

@@ -5,7 +5,7 @@
 [![Latest Version](https://img.shields.io/badge/latest-v0.1.1--a1-orange.svg)](https://git.duniter.org/nodes/rust/duniter-rs/tags/v0.1.1-a1)
 [![docs](https://librelois.fr/img/docs-read%20now-green.svg)](https://nodes.duniter.io/rust/duniter-rs/dunitrust/)
 [![build status](https://git.duniter.org/nodes/rust/duniter-rs/badges/dev/build.svg)](https://git.duniter.org/nodes/rust/duniter-rs/commits/dev)
-[![Minimum rustc version](https://img.shields.io/badge/rustc-1.40.0+-yellow.svg)](https://github.com/rust-lang/rust/blob/master/RELEASES.md)
+[![Minimum rustc version](https://img.shields.io/badge/rustc-1.41.0+-yellow.svg)](https://github.com/rust-lang/rust/blob/master/RELEASES.md)
 
 ## What is Duniter