[2.8.8] 版本修复：头颅物品皮肤

• fix(head): 修复头颅皮肤无法正确应用的问题。

What's Changed

• chore(deps): bump com.github.cryptomorin:XSeries from 9.6.1.1 to 9.7.0 by @dependabot in #49
• chore(deps): bump org.apache.maven.plugins:maven-surefire-plugin from 3.1.2 to 3.2.1 by @dependabot in #48
• chore(deps): bump me.clip:placeholderapi from 2.11.4 to 2.11.5 by @dependabot in #50

Full Changelog: 2.8.7...2.8.8