Add explicit TLS flags to Testkit backend (#1089)

Author: injectives

.gitignore

@@ -29,3 +29,4 @@ dependency-reduced-pom.xml
 venv
 testkit-backend/bin/
 testkit/CAs/
+testkit/CustomCAs/

testkit-backend/src/main/java/neo4j/org/testkit/backend/messages/requests/GetFeatures.java

@@ -49,7 +49,10 @@ public class GetFeatures implements TestkitRequest
             "Feature:Auth:Kerberos",
             "Feature:Auth:Custom",
             "Feature:Impersonation",
-            "Temporary:FastFailingDiscovery"
+            "Temporary:FastFailingDiscovery",
+            "Feature:TLS:1.1",
+            "Feature:TLS:1.2",
+            "Feature:API:SSLSchemes"
     ) );
 
     private static final Set<String> SYNC_FEATURES = new HashSet<>( Arrays.asList(