Handle dates with 'Sept' instead of 'Sep' globally (#516)

There are often failures due to the use of 'Sept' instead of 'Sep' in dates (for example https://github.com/endoflife-date/release-data/actions/runs/17707933881). Manage this globally so that it's not needed do it in each script / config.

src/apple.py

@@ -48,7 +48,7 @@ with ProductData(config.product) as product_data:
                 logging.info(f"ignoring version {version_text} ({date_text}), date pattern don't match")
                 continue
 
-            date_str = date_match.group(0).replace("Sept ", "Sep ")
+            date_str = date_match.group(0)
             date = dates.parse_date(date_str)
             for version_pattern in config.include_version_patterns:
                 for version_str in version_pattern.findall(version_text):

src/artifactory.py

@@ -16,5 +16,5 @@ with ProductData(config.product) as product_data:
         if len(cells) >= 2:
             version = cells[0].text.strip()
             if version:
-                date_str = cells[1].text.strip().replace("_", "-").replace("Sept-", "Sep-")
+                date_str = cells[1].text.strip().replace("_", "-")
                 product_data.declare_version(version, dates.parse_date(date_str))

src/common/dates.py

@@ -71,6 +71,10 @@ def parse_datetime(text: str, formats: list[str] = frozenset([
         .replace(". ", " ")  # November 10. 2015 -> November 10 2015
         .replace("(", "")  # (November 10 2015) -> November 10 2015)
         .replace(")", "")  # (November 10 2015) -> (November 10 2015
+        .replace("Sept ", "Sep ")  # 11 Sept 2025 -> 11 Sep 2025
+        .replace("Sept-", "Sep-")  # 11-Sept-2025 -> 11-Sep-2025
+        .replace("sept ", "sep ")  # 11 Sept 2025 -> 11 Sep 2025
+        .replace("sept-", "sep-")  # 11-Sept-2025 -> 11-Sep-2025
     )
     for fmt in formats:
         try: