Update Cosmos API dependency to 26.3 and upgrade Gradle wrapper to 9.8.0

build.gradle.kts

@@ -7,7 +7,7 @@ group = "com.alttd.skipnight"
 version = System.getenv("BUILD_NUMBER") ?:  "1.0-SNAPSHOT"
 
 dependencies {
-    compileOnly("com.alttd.cosmos:cosmos-api:26.2.build.17-stable")
+    compileOnly("com.alttd.cosmos:cosmos-api:26.3.build.19-alpha")
 }
 
 tasks {
@@ -21,6 +21,6 @@ paper {
     main = "$group.${rootProject.name}"
     description = rootProject.description
     version = "${rootProject.version}"
-    apiVersion = "26.2"
+    apiVersion = "26.3"
     authors = listOf("destro174")
-}
+}