test: increase timeout for :dd-java-agent:agent-ci-visibility: (#9375)

Author: daniel-mohedano

dd-java-agent/agent-ci-visibility/build.gradle

@@ -1,3 +1,6 @@
+import java.time.Duration
+import java.time.temporal.ChronoUnit
+
 buildscript {
   repositories {
     mavenLocal()
@@ -72,3 +75,7 @@ shadowJar {
 jar {
   archiveClassifier = 'unbundled'
 }
+
+tasks.withType(Test).configureEach {
+  timeout = Duration.of(12, ChronoUnit.MINUTES)
+}