bazel: fix running http tests

Other than Maven bazel seems unable to cope with abstract
AllFactoriesHttpTestCase having no test methods, hence tag this class
with @Ignore.

Change-Id: I9dfe43f882ad073b284648e24844b51877d87776
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit.http.test/tst/org/eclipse/jgit/http/test/AllFactoriesHttpTestCase.java

 import org.eclipse.jgit.transport.http.apache.HttpClientConnectionFactory;
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
+import org.junit.Ignore;
 import org.junit.runner.RunWith;
 import org.junit.runners.Parameterized;
 import org.junit.runners.Parameterized.Parameters;
  * factories provided in JGit: the JDK {@link JDKHttpConnectionFactory} and the
  * Apache HTTP {@link HttpClientConnectionFactory}.
  */
+@Ignore
 @RunWith(Parameterized.class)
 public abstract class AllFactoriesHttpTestCase extends HttpTestCase {