chore: Update syntax for latest

Author: attakei

.age.toml

@@ -14,13 +14,13 @@ replace = "__version__ = \"{{new_version}}\""
 path = "CHANGES.rst"
 search = """
 Version {{current_version}}
-========{% for _ in current_version %}={% endfor %}
+========{{#sameLengthChars}}=@{{current_version}}{{/sameLengthChars}}
 """
 replace = """
 Version {{new_version}}
-========{% for _ in new_version %}={% endfor %}
+========{{#sameLengthChars}}=@{{new_version}}{{/sameLengthChars}}
 
-:Release date: {{ now|date }} (Asia/Tokyo)
+:Release date: {{ nowFormat.dateISO }} (Asia/Tokyo)
 :Dart Sass version: 1.87.0
 
 Breaking changes