Update used the version from Java to 25

Author: theEvilReaper

common/build.gradle.kts

@@ -7,7 +7,7 @@ version = "0.0.1"
 
 java {
     toolchain {
-        languageVersion.set(JavaLanguageVersion.of(21))
+        languageVersion.set(JavaLanguageVersion.of(25))
     }
 }
 

setup/build.gradle.kts

@@ -37,7 +37,7 @@ application {
 
 java {
     toolchain {
-        languageVersion.set(JavaLanguageVersion.of(21))
+        languageVersion.set(JavaLanguageVersion.of(25))
     }
 }