fix(deps): update dependency com.gradleup.shadow:shadow-gradle-plugin to v9.6.1

Author: renovate[bot]

build.gradle.kts

@@ -17,7 +17,7 @@ dependencies {
 
     implementation("org.yaml:snakeyaml:2.6")
 
-    implementation("com.gradleup.shadow:shadow-gradle-plugin:9.4.1")
+    implementation("com.gradleup.shadow:shadow-gradle-plugin:9.6.1")
     implementation("net.thebugmc.gradle.sonatype-central-portal-publisher:net.thebugmc.gradle.sonatype-central-portal-publisher.gradle.plugin:1.2.4")
     implementation("org.cthing.build-constants:org.cthing.build-constants.gradle.plugin:2.1.0")