chore: add tag creation in prepare-release script (#697)

<!---
☝️ PR title should follow conventional commits
(https://conventionalcommits.org)
-->

### 🔗 Linked issue

<!-- If it resolves an open issue, please link the issue here. For
example "Resolves #123" -->

### ❓ Type of change

<!-- What types of changes does your code introduce? Put an `x` in all
the boxes that apply. -->

- [ ] 📖 Documentation (updates to the documentation or readme)
- [ ] 🐞 Bug fix (a non-breaking change that fixes an issue)
- [ ] 👌 Enhancement (improving an existing functionality)
- [ ] ✨ New feature (a non-breaking change that adds functionality)
- [ ] 🧹 Chore (updates to the build process or auxiliary tools and
libraries)
- [ ] ⚠️ Breaking change (fix or feature that would cause existing
functionality to change)

### 📚 Description

Add tag creation in prepare-release script

prepare-release.ts

@@ -251,6 +251,8 @@ async function main() {
   execSync('pnpm lint:prettier --write')
 
   execSync(`git commit -am "chore(release): bump version to ${newVersion}"`)
+
+  execSync(`git tag -a v${newVersion} -m "v${newVersion}"`)
 }
 
 main().catch((err) => {