Changelog creation for 8.9.2 release (#3351) (#3352)

* Changelog creation for 8.9.2 release

* Update 8.9.2.asciidoc

(cherry picked from commit 6fc2876)

Co-authored-by: Pierre HILBERT <pierre.hilbert@elastic.co>

Author: mergify[bot]

changelog/8.9.2.asciidoc

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+// begin 8.9.2 relnotes
+
+[[release-notes-8.9.2]]
+==  8.9.2
+
+Review important information about the  8.9.2 release.
+
+
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+[discrete]
+[[enhancements-8.9.2]]
+=== Enhancements
+
+
+elastic-agent::
+
+* Adds logging to the restart step of the Agent upgrade rollback process. {elastic-agent-pull}https://github.com/elastic/elastic-agent/pull/3245[#https://github.com/elastic/elastic-agent/pull/3245] 
+
+
+
+
+[discrete]
+[[bug-fixes-8.9.2]]
+=== Bug fixes
+
+
+Uninstaller::
+
+* Correctly identify retryable errors when attempting to uninstall on Windows. {Uninstaller-pull}https://github.com/elastic/elastic-agent/pull/3317[#https://github.com/elastic/elastic-agent/pull/3317] 
+
+// end 8.9.2 relnotes

changelog/8.9.2.yaml

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+version: 8.9.2
+entries:
+    - kind: enhancement
+      summary: Adds more logging to the rollback process
+      description: ""
+      component: elastic-agent
+      pr:
+        - https://github.com/elastic/elastic-agent/pull/3245
+      issue: []
+      timestamp: 1692141038
+      file:
+        name: 1692141038-upgrade-watcher-logging.yaml
+        checksum: df3b71b30a8b199dc52705069edff9c4079200b4
+    - kind: bug-fix
+      summary: Correctly identify retryable errors when attempting to uninstall on Windows
+      description: ""
+      component: Uninstaller
+      pr:
+        - https://github.com/elastic/elastic-agent/pull/3317
+      issue: []
+      timestamp: 1693319952
+      file:
+        name: 1693319952-Change-error-handling-o-Windows-when-uninstalling-the-Elastic-Agent.yaml
+        checksum: 5f52725e4e52247d7ad35d49d6402f4f4b0ce5aa