build: add pre-commit checks for yaml + shellscript

.pre-commit-config.yaml

@@ -0,0 +1,10 @@
+---
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.6.0
+    hooks:
+      - id: check-yaml
+  - repo: https://github.com/shellcheck-py/shellcheck-py
+    rev: v0.10.0.1
+    hooks:
+    -   id: shellcheck

bootstrap.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+pipx run pre-commit install