tests: suppress push in test-service-dulwich.t for recent releases
Pushing to Dulwich itself is broken in recent releases; I've posted a PR that should fix that, so we assume the next release will fix it.
Meet users and developers of Mercurial at the London Sprint, May 27-29th https://mercurial-scm.org/news/2026/0001-london-sprint
Pushing to Dulwich itself is broken in recent releases; I've posted a PR that should fix that, so we assume the next release will fix it.