build: Bypass Homebrew JDK vendor check for desktop packaging

Compose Desktop's checkRuntime task rejects Homebrew JDK distributions
because their bundled runtimes may be broken. Disable the vendor check
to keep packaging with the current toolchain.

Refs JetBrains/compose-multiplatform#3107

gradle.properties

@@ -2,3 +2,4 @@ kotlin.code.style=official
 android.useAndroidX=true
 android.nonTransitiveRClass=true
 org.gradle.jvmargs=-Xmx4096m
+compose.desktop.packaging.checkJdkVendor=false