Add Fleet Server 9.2.7 release notes (#6603)

* add the 9.2.7 Fleet Server release notes

* Update PR link

* clean up description

---------

Co-authored-by: pierrehilbert <806950+pierrehilbert@users.noreply.github.com>
Co-authored-by: Pierre HILBERT <pierre.hilbert@elastic.co>
Co-authored-by: ebeahan <eric.beahan@elastic.co>

Author: 3 people

changelog/9.2.7.yaml

@@ -0,0 +1,84 @@
+version: 9.2.7
+entries:
+    - kind: enhancement
+      summary: Accept secret references in policies in either inline or path formats
+      description: ""
+      component: fleet-server
+      pr:
+        - https://github.com/elastic/fleet-server/pull/5852
+      issue: []
+      impact: ""
+      action: ""
+      timestamp: 1762435732
+      file:
+        name: 1762435732-secrets-fallback.yaml
+        checksum: 5b929a1761bf0cd924d72ba2016afee132dbb163
+    - kind: feature
+      summary: Support secrets in agent.download section of policy
+      description: ""
+      component: fleet-server
+      pr:
+        - https://github.com/elastic/fleet-server/pull/5837
+      issue:
+        - https://github.com/elastic/fleet-server/issues/4470
+      impact: ""
+      action: ""
+      timestamp: 1764192755
+      file:
+        name: 1764192755-ssl-secrets.yaml
+        checksum: d5c90a81749c0e4b28b1bb2aefdc0b857463cd66
+    - kind: feature
+      summary: Support secrets in fleet section of policy
+      description: ""
+      component: fleet-server
+      pr:
+        - https://github.com/elastic/fleet-server/pull/5997
+      issue: []
+      impact: ""
+      action: ""
+      timestamp: 1764638389
+      file:
+        name: 1764638389-secrets-fleet-ssl.yaml
+        checksum: b0c2b503cefaaca00701643576e74684b6b5ad8f
+    - kind: bug-fix
+      summary: Add support for OTEL secrets handling
+      description: |
+        Added functionality to replace secrets in OTEL sections (receivers, exporters, processors, extensions, connectors) of a policy.
+      component: fleet-server
+      pr:
+        - https://github.com/elastic/fleet-server/pull/6419
+      issue:
+        - https://github.com/elastic/fleet-server/issues/6277
+      impact: ""
+      action: ""
+      timestamp: 1771972977
+      file:
+        name: 1771972977-Add-support-for-OTEL-secrets-handling.yaml
+        checksum: a07d04d18be234304d8c4fff8be5e4c8a823e288
+    - kind: bug-fix
+      summary: Fix checkin endpoint compression support
+      description: |
+        Adds support for gzip compressed requests to the checkin endpoint.
+      component: fleet-server
+      pr:
+        - https://github.com/elastic/fleet-server/pull/6491
+      issue: []
+      impact: ""
+      action: ""
+      timestamp: 1772577135
+      file:
+        name: 1772577135-Fix-checkin-compression-support.yaml
+        checksum: 5f7272396b0d42068d09e00b107adcf57b29f9a4
+    - kind: bug-fix
+      summary: Fix inaccuracies with openapi spec
+      description: ""
+      component: fleet-server
+      pr:
+        - https://github.com/elastic/fleet-server/pull/6517
+      issue: []
+      impact: ""
+      action: ""
+      timestamp: 1772755112
+      file:
+        name: 1772755112-Fix-innacuracies-with-openapi-spec.yaml
+        checksum: f867db4c96d35d5c75a59ffe1e5584144de92366

changelog/fragments/1762435732-secrets-fallback.yaml

@@ -0,0 +1,3 @@
+## 9.2.7 [fleet-server-9.2.7-breaking-changes]
+
+_No breaking changes._

changelog/fragments/1764192755-ssl-secrets.yaml

@@ -0,0 +1,3 @@
+## 9.2.7 [fleet-server-9.2.7-deprecations]
+
+_No deprecations._

changelog/fragments/1764638389-secrets-fleet-ssl.yaml

@@ -0,0 +1,25 @@
+## 9.2.7 [fleet-server-release-notes-9.2.7]
+
+
+
+### Features and enhancements [fleet-server-9.2.7-features-enhancements]
+
+
+* Support secrets in agent.download section of policy. [#5837](https://github.com/elastic/fleet-server/pull/5837)
+* Support secrets in fleet section of policy. [#5997](https://github.com/elastic/fleet-server/pull/5997) 
+* Accept secret references in policies in either inline or path formats. [#5852](https://github.com/elastic/fleet-server/pull/5852) 
+
+
+### Fixes [fleet-server-9.2.7-fixes]
+
+
+* Add support for OTEL secrets handling. [#6419](https://github.com/elastic/fleet-server/pull/6419) [#6277](https://github.com/elastic/fleet-server/issues/6277)
+
+  Added functionality to replace secrets in OTEL sections (receivers, exporters, processors, extensions, connectors) of a policy.
+  
+* Fix checkin endpoint compression support. [#6491](https://github.com/elastic/fleet-server/pull/6491) 
+
+  Adds support for gzip compressed requests to the checkin endpoint.
+  
+* Fix inaccuracies with openapi spec. [#6517](https://github.com/elastic/fleet-server/pull/6517) 
+