ci: commitlint via nix-shell

Signed-off-by: Steffen Siering <[email protected]>

Author: urso

.pre-commit-config.yaml

@@ -35,7 +35,7 @@ repos:
         name: Commit Lint
         description: Runs commitlint against the commit message.
         language: system
-        entry: bash -c "npm install @commitlint/config-conventional @commitlint/cli; cat $1 | awk '/^# -+.*>8.*-+/{exit} 1' | grep -v '^#' | npx commitlint"
+        entry: bash -c "cat $1 | awk '/^# -+.*>8.*-+/{exit} 1' | grep -v '^#' | commitlint"
         args: [$1]
         stages: [commit-msg]
     -   id: python-check