feat: use reflection instead folia dependencies, java 8 supported

pom.xml

@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
 
     <properties>
-        <project.jdk.version>21</project.jdk.version>
+        <project.jdk.version>8</project.jdk.version>
         <project.package>cc.carm.plugin.userprefix</project.package>
 
         <maven.compiler.source>${project.jdk.version}</maven.compiler.source>
@@ -63,7 +63,7 @@
 
         <repository>
             <id>maven-central</id>
-            <url>https://repo1.maven.org/maven2/</url>
+            <url>https://repo.nju.edu.cn/maven/</url>
         </repository>
 
         <repository>
@@ -76,11 +76,6 @@
             <url>https://hub.spigotmc.org/nexus/content/repositories/snapshots/</url>
         </repository>
 
-        <repository>
-            <id>papermc</id>
-            <url>https://repo.papermc.io/repository/maven-public/</url>
-        </repository>
-
         <repository>
             <id>luck-repo</id>
             <url>https://repo.lucko.me/</url>
@@ -190,17 +185,10 @@
             <scope>provided</scope>
         </dependency>
 
-<!--        <dependency>-->
-<!--            <groupId>org.spigotmc</groupId>-->
-<!--            <artifactId>spigot-api</artifactId>-->
-<!--            <version>1.17-R0.1-SNAPSHOT</version>-->
-<!--            <scope>provided</scope>-->
-<!--        </dependency>-->
-
         <dependency>
-            <groupId>dev.folia</groupId>
-            <artifactId>folia-api</artifactId>
-            <version>1.21.4-R0.1-SNAPSHOT</version>
+            <groupId>org.spigotmc</groupId>
+            <artifactId>spigot-api</artifactId>
+            <version>1.17-R0.1-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>