feat: release 1.4.0 with isolated upgrades and device discovery

tests/unit/test_source_archive.py

@@ -112,7 +112,7 @@ def test_unpacked_archive_fast_forwards(repository, tmp_path):
     git(root, "push", "test-upstream", "main")
     from scripts.update_installation import update_source
 
-    assert update_source(extracted, port=1) == 10
+    assert update_source(extracted) == 10
     assert (extracted / "start.bat").read_text() == "updated"
     assert git(extracted, "status", "--porcelain") == ""