chore: switch to commitlint

Author: robertrossmann

.commitlintrc.js

@@ -0,0 +1,18 @@
+'use strict'
+
+module.exports = {
+  extends: [
+    '@commitlint/config-conventional',
+  ],
+
+  rules: {
+    'scope-enum': [2, 'always', [
+      'rule',
+      'plugin',
+      'eslint',
+      'core',
+    ]],
+
+    'body-leading-blank': [2, 'always'],
+  },
+}