feature: @putout/plugin-variables: convert-const-to-let: add

Author: coderaiser

README.md

@@ -2151,7 +2151,6 @@ It has a lot of plugins divided by groups:
 | [`@putout/plugin-convert-array-copy-to-slice`](/packages/plugin-convert-array-copy-to-slice#readme) | [![npm](https://img.shields.io/npm/v/@putout/plugin-convert-array-copy-to-slice.svg?maxAge=86400)](https://www.npmjs.com/package/@putout/plugin-convert-array-copy-to-slice) |
 | [`@putout/plugin-convert-template-to-string`](/packages/plugin-convert-template-to-string#readme) | [![npm](https://img.shields.io/npm/v/@putout/plugin-convert-template-to-string.svg?maxAge=86400)](https://www.npmjs.com/package/@putout/plugin-convert-template-to-string) |
 | [`@putout/plugin-convert-index-of-to-includes`](/packages/plugin-convert-index-of-to-includes#readme) | [![npm](https://img.shields.io/npm/v/@putout/plugin-convert-index-of-to-includes.svg?maxAge=86400)](https://www.npmjs.com/package/@putout/plugin-convert-index-of-to-includes) |
-| [`@putout/plugin-convert-const-to-let`](/packages/plugin-convert-const-to-let#readme) | [![npm](https://img.shields.io/npm/v/@putout/plugin-convert-const-to-let.svg?maxAge=86400)](https://www.npmjs.com/package/@putout/plugin-convert-const-to-let) |
 | [`@putout/plugin-convert-object-entries-to-array-entries`](/packages/plugin-convert-object-entries-to-array-entries#readme) | [![npm](https://img.shields.io/npm/v/@putout/plugin-convert-object-entries-to-array-entries.svg?maxAge=86400)](https://www.npmjs.com/package/@putout/plugin-convert-object-entries-to-array-entries) |
 | [`@putout/plugin-convert-object-entries-to-object-keys`](/packages/plugin-convert-object-entries-to-object-keys#readme) | [![npm](https://img.shields.io/npm/v/@putout/plugin-convert-object-entries-to-object-keys.svg?maxAge=86400)](https://www.npmjs.com/package/@putout/plugin-convert-object-entries-to-object-keys) |
 | [`@putout/plugin-convert-object-keys-to-object-entries`](/packages/plugin-convert-object-keys-to-object-entries#readme) | [![npm](https://img.shields.io/npm/v/@putout/plugin-convert-object-keys-to-object-entries.svg?maxAge=86400)](https://www.npmjs.com/package/@putout/plugin-convert-object-keys-to-object-entries) |

packages/operate/test/operate.js

@@ -288,9 +288,11 @@ test('putout: operate: remove: comment: after remove', (t) => {
 
 test('putout: operate: replaceWithMultiple: parent comment', (t) => {
     const {code} = putout(fixture.parentComment, {
-        plugins: [
-            'split-variable-declarations',
-        ],
+        rules: {
+            'variables': 'off',
+            'variables/split-declarations': 'on',
+        },
+        plugins: ['variables'],
     });
 
     const expected = fixture.parentCommentFix;