chore: Up Java.

Author: DxsSucuk

pom.xml

@@ -7,6 +7,10 @@
     <artifactId>Lavalink-Client</artifactId>
     <version>1.0.0</version>
 
+    <properties>
+        <javaVersion>17</javaVersion>
+    </properties>
+
     <repositories>
         <repository>
             <id>ll-snapshots</id>
@@ -107,8 +111,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.13.0</version>
                 <configuration>
-                    <source>${java.version}</source>
-                    <target>${java.version}</target>
+                    <source>${javaVersion}</source>
+                    <target>${javaVersion}</target>
                 </configuration>
             </plugin>
             <plugin>