Adding support for in changelog for providers (apache#45154)

dev/breeze/src/airflow_breeze/prepare_providers/provider_documentation.py

@@ -154,6 +154,7 @@ def __init__(self):
         self.misc: list[Change] = []
         self.features: list[Change] = []
         self.breaking_changes: list[Change] = []
+        self.docs: list[Change] = []
         self.other: list[Change] = []
 
 
@@ -936,6 +937,8 @@ def _get_changes_classified(
             classified_changes.features.append(change)
         elif type_of_change == TypeOfChange.BREAKING_CHANGE and with_breaking_changes:
             classified_changes.breaking_changes.append(change)
+        elif type_of_change == TypeOfChange.DOCUMENTATION:
+            classified_changes.docs.append(change)
         else:
             classified_changes.other.append(change)
     return classified_changes

dev/breeze/src/airflow_breeze/templates/CHANGELOG_TEMPLATE.rst.jinja2

@@ -60,6 +60,16 @@ Misc
 {%- endif %}
 
 
+{%- if classified_changes and classified_changes.docs %}
+
+Doc-only
+~~~~
+{% for doc in classified_changes.docs %}
+* ``{{ doc.message_without_backticks | safe }}``
+{%- endfor %}
+{%- endif %}
+
+
 .. Below changes are excluded from the changelog. Move them to
    appropriate section above if needed. Do not delete the lines(!):
 {%- if classified_changes and classified_changes.other %}