some minor changes for releasing the extension and revert failed publish PR #1123 (#1132)

* improve extension bundle

* Revert "Version Packages (alpha) (#1123)"

This reverts commit 39f8c24f1d.

packages/rrweb-snapshot/CHANGELOG.md

@@ -1,9 +0,0 @@
-# rrweb-snapshot
-
-## 2.0.0-alpha.5
-
-### Patch Changes
-
-- [#1095](https://github.com/rrweb-io/rrweb/pull/1095) [`1385f7a`](https://github.com/rrweb-io/rrweb/commit/1385f7acc0052f83be1458a7b00e18c026ee393f) Thanks [@YunFeng0817](https://github.com/YunFeng0817)! - Fix duplicated shadow doms
-
-- [#1126](https://github.com/rrweb-io/rrweb/pull/1126) [`227d43a`](https://github.com/rrweb-io/rrweb/commit/227d43abb93d57cadc70c760b28c46911bf7d8ff) Thanks [@YunFeng0817](https://github.com/YunFeng0817)! - Refactor all suffix of bundled scripts with commonjs module from 'js' to cjs [#1087](https://github.com/rrweb-io/rrweb/pull/1087).

packages/rrweb-snapshot/package.json

@@ -1,6 +1,6 @@
 {
   "name": "rrweb-snapshot",
-  "version": "2.0.0-alpha.5",
+  "version": "2.0.0-alpha.4",
   "description": "rrweb's component to take a snapshot of DOM, aka DOM serializer",
   "scripts": {
     "prepare": "npm run prepack",