chore: add shell pre-commit hooks

.pre-commit-config.yaml

@@ -57,3 +57,8 @@ repos:
     hooks:
       - id: codespell
         additional_dependencies: [tomli]
+
+  - repo: https://github.com/shellcheck-py/shellcheck-py
+    rev: v0.8.0.4
+    hooks:
+      - id: shellcheck