Add missing changelogs.

changelogs/fragments/parents.yml

@@ -0,0 +1,5 @@
+bugfixes:
+  - Host module - Parents will be parsed properly now.
+    This means, that parents given as a string will now be parsed as a list of one.
+  - Folder module - Parents will be parsed properly now.
+    This means, that parents given as a string will now be parsed as a list of one.

changelogs/fragments/release_summary.yml

@@ -1 +1 @@
-release_summary: "Folders, build related changed and the environment."
+release_summary: "Reworking the CI, enhancing code quality and improving modules."

changelogs/fragments/rule.yml

@@ -0,0 +1,4 @@
+minor_changes:
+  - Rule module - Introduce rule_id to uniquely identify rules.
+    This ID can be retrieved e.g., using the lookup plugin.
+    Refer to the module documentation for further details.