Add Maven Central repository

Include Maven Central repository in the build script to ensure that dependencies can be resolved properly. This is required for the new jspecify dependency added to the project.

Author: david

functions/build.gradle.kts

@@ -13,6 +13,10 @@ tasks.compileJava {
     options.release.set(21)
 }
 
+repositories {
+    mavenCentral()
+}
+
 dependencies {
     compileOnly("org.jspecify:jspecify:1.0.0")
 }