html_validation: sort errors by line before exit

Change-Id: I9171ef8813fb14745fe7ea3ecf110cc81a381eb1

Author: logan-connolly

scripts/html_validation/lib/tag_balance.py

@@ -79,6 +79,7 @@ def __exit__(
             }
             for tag, line, attrs in self._stack
         )
+        self._errors.sort(key=lambda item: item["line"])
         self._stack = []
         self.close()
 

scripts/html_validation/tests/test_tag_balance.py

@@ -88,11 +88,6 @@ def test_check_html_tag_balance_error_payload() -> None:
         expected = {
             "count": 3,
             "errors": [
-                {
-                    "line": 6,
-                    "reason": "has no matching open tag",
-                    "tag": "</span",
-                },
                 {
                     "line": 3,
                     "reason": "not closed before </html>",
@@ -103,6 +98,11 @@ def test_check_html_tag_balance_error_payload() -> None:
                     "reason": "not closed before </html>",
                     "tag": "<div class='card'>",
                 },
+                {
+                    "line": 6,
+                    "reason": "has no matching open tag",
+                    "tag": "</span",
+                },
             ],
         }
         assert value == expected