fix: update mcVersion to 1.21.10 in gradle.properties

Author: Keviro

gradle.properties

@@ -5,7 +5,7 @@ kapt.use.k2=true
 org.gradle.jvmargs=-Xmx4G
 org.jetbrains.dokka.experimental.gradle.pluginMode=V2Enabled
 javaVersion=21
-mcVersion=1.21.8
+mcVersion=1.21.10
 group=dev.slne.surf
 version=1.21.10-2.39.1
 relocationPrefix=dev.slne.surf.surfapi.libs