Add support for <script setup>

[ota-meshi]

• Upgrade the dependency espree to v8. (However, by default it uses the eslint dependency espree.)
• Change to support ecmaVersion: "latest" when using espree v8+.
• Change to use sourceType: module by default when parsing <script setup>.
• Change to use ES2022 by default when using espree v8+ and parsing <script setup>.
• Add an option to defineTemplateBodyVisitor to change the trigger to visit the template nodes.
• Add <script setup> testcases.

Related to #78