chore: bump version to 12.8.1 and ready CHANGELOG (#26125)

Author: AtofStryker

cli/CHANGELOG.md

@@ -1,7 +1,7 @@
 <!-- See the ../guides/writing-the-cypress-changelog.md for details on writing the changelog. -->
 ## 12.8.1
 
-_Released 03/15/2023 (PENDING)_
+_Released 03/15/2023_
 
 **Bugfixes:**
 

package.json

@@ -1,6 +1,6 @@
 {
  "name": "cypress",
- "version": "12.8.0",
+ "version": "12.8.1",
  "description": "Cypress is a next generation front end testing tool built for the modern web",
  "private": true,
  "scripts": {