Do not run smoke test servers when tests are disabled

Unfortunately Gradle seem to need some manual help to figure this one out.

dd-smoke-tests/play/play.gradle

@@ -87,6 +87,9 @@ tasks.register("startServer", com.github.psxpaul.task.ExecFork) {
   ]
 
   dependsOn 'stage'
+
+  // When tests are disabled this would still be run, so disable this manually
+  onlyIf { !project.rootProject.hasProperty("skipTests") }
 }
 
 tasks.register("deletePIDFile") {

dd-smoke-tests/springboot/springboot.gradle

@@ -50,6 +50,9 @@ tasks.register("startServer", com.github.psxpaul.task.ExecFork) {
   waitForOutput = "datadog.smoketest.springboot.SpringbootApplication - Started SpringbootApplication"
   timeout = 240
   stopAfter = test
+
+  // When tests are disabled this would still be run, so disable this manually
+  onlyIf { !project.rootProject.hasProperty("skipTests") }
 }
 
 tasks.withType(Test).configureEach {

dd-smoke-tests/wildfly/wildfly.gradle

@@ -50,6 +50,9 @@ tasks.register("unzip", Copy) {
   } else {
     throw new GradleException("Can't find server zip file that starts with: " + zipFileNamePrefix)
   }
+
+  // When tests are disabled this would still be run, so disable this manually
+  onlyIf { !project.rootProject.hasProperty("skipTests") }
 }
 
 tasks.register("startServer", com.github.psxpaul.task.ExecFork) {
@@ -83,6 +86,9 @@ tasks.register("startServer", com.github.psxpaul.task.ExecFork) {
   ]
 
   dependsOn unzip
+
+  // When tests are disabled this would still be run, so disable this manually
+  onlyIf { !project.rootProject.hasProperty("skipTests") }
 }
 
 tasks.register("stopWildfly", Exec) {
@@ -92,6 +98,9 @@ tasks.register("stopWildfly", Exec) {
   args = ["--connect", "--controller=localhost:${wildflyManagementPort}", "command=:shutdown"]
 
   dependsOn startServer
+
+  // When tests are disabled this would still be run, so disable this manually
+  onlyIf { !project.rootProject.hasProperty("skipTests") }
 }
 
 tasks.withType(Test).configureEach {

gradle/java.gradle

@@ -302,10 +302,8 @@ for (def env : System.getenv().entrySet()) {
 }
 
 // Disable all tests if skipTests property was specified
-if (project.hasProperty("skipTests")) {
 tasks.withType(Test).configureEach {
-    onlyIf { false }
-  }
+  onlyIf { !project.rootProject.hasProperty("skipTests") }
 }
 
 plugins.withType(BasePlugin) {