ci(pre-commit) #1427: Introduce rust and gitlab-ci-linter pre-commit hooks

Set to git.duniter.org to not request gitlab.com API

.pre-commit-config.yaml

+repos:
+-   repo: https://github.com/doublify/pre-commit-rust
+    rev: v1.0
+    hooks:
+    -   id: fmt
+    -   id: cargo-check
+-   repo: https://gitlab.com/devopshq/gitlab-ci-linter
+    rev: v1.0.3
+    hooks:
+    - id: gitlab-ci-linter
+      args:
+        - "--server"
+        - "https://git.duniter.org"