Bump tiny-remapper to 0.10.3

Fixes warnings when using some java 21 features

build.gradle.kts

@@ -68,7 +68,7 @@ repositories {
 
 dependencies {
     paramMappings("net.fabricmc:yarn:1.21+build.1:mergedv2")
-    remapper("net.fabricmc:tiny-remapper:0.10.2:fat")
+    remapper("net.fabricmc:tiny-remapper:0.10.3:fat")
     decompiler("org.vineflower:vineflower:1.10.1")
     spigotDecompiler("io.papermc:patched-spigot-fernflower:0.1+build.13")
     paperclip("io.papermc:paperclip:3.0.3")