Small fixes

pipeline/download/tiles.py

@@ -7,22 +7,23 @@ import subprocess
 import sys
 import tarfile
 import urllib.request
-from datetime import datetime, timedelta
+from datetime import UTC, datetime, timedelta
 from io import BytesIO
 from pathlib import Path
 
 PROTOMAPS_BASE = "https://build.protomaps.com"
 UK_BBOX = "-10.5,49,5,61"
 MAX_AGE_DAYS = 14
+USER_AGENT = "property-map-tiles/1.0"
 
 
 def find_latest_build() -> str:
     """Find the most recent available Protomaps daily build."""
-    today = datetime.utcnow().date()
+    today = datetime.now(UTC).date()
     for i in range(MAX_AGE_DAYS):
         d = today - timedelta(days=i)
         url = f"{PROTOMAPS_BASE}/{d:%Y%m%d}.pmtiles"
-        req = urllib.request.Request(url, method="HEAD")
+        req = urllib.request.Request(url, method="HEAD", headers={"User-Agent": USER_AGENT})
         try:
             urllib.request.urlopen(req)
             print(f"Found build: {d:%Y%m%d}")