take python laziness into account

tests/ahriman/models/test_build_status.py

@@ -1,4 +1,5 @@
 import datetime
+import time
 
 from ahriman.models.build_status import BuildStatus, BuildStatusEnum
 
@@ -45,6 +46,17 @@ def test_build_status_init_2(build_status_failed: BuildStatus) -> None:
     assert status == build_status_failed
 
 
+def test_build_status_init_empty_timestamp() -> None:
+    """
+    must st current timestamp when not set
+    """
+    first = BuildStatus()
+    time.sleep(1)
+    second = BuildStatus()
+    # well technically it just should increase
+    assert first.timestamp < second.timestamp
+
+
 def test_build_status_from_json_view(build_status_failed: BuildStatus) -> None:
     """
     must construct same object from json