o365: add changelog details

Author: efd6

packages/o365/changelog.yml

@@ -1,4 +1,9 @@
 # newer versions go on top
+- version: "2.15.0"
+  changes:
+    - description: Improve clarity of CEL agent collector code.
+      type: enhancement
+      link: https://github.com/elastic/integrations/pull/
 - version: "2.14.1"
   changes:
     - description: Fix default request trace enabled behavior.

packages/o365/manifest.yml

@@ -1,6 +1,6 @@
 name: o365
 title: Microsoft Office 365
-version: "2.14.1"
+version: "2.15.0"
 description: Collect logs from Microsoft Office 365 with Elastic Agent.
 type: integration
 format_version: "3.2.3"