[release] Changelog for 8.18.2 (#8242)

* clean up stale fragments from past 8.18.x releases

* add changelog for 8.18.2

Author: ebeahan

changelog/8.18.2.asciidoc

@@ -0,0 +1,19 @@
+// begin 8.18.2 relnotes
+
+[[release-notes-8.18.2]]
+==  8.18.2
+
+Review important information about the  8.18.2 release.
+
+[discrete]
+[[security-updates-8.18.2]]
+=== Security updates
+
+
+Elastic-agent::
+
+elastic-agent::
+
+* Upgrade To Go 1.24.3. {elastic-agent-pull}https://github.com/elastic/elastic-agent/pull/8109[#https://github.com/elastic/elastic-agent/pull/8109]
+
+// end 8.18.2 relnotes

changelog/8.18.2.yaml

@@ -0,0 +1,14 @@
+version: 8.18.2
+entries:
+    - kind: security
+      summary: Upgrade to Go 1.24.3.
+      description: ""
+      component: elastic-agent
+      pr:
+        - https://github.com/elastic/elastic-agent/pull/8109
+      issue: []
+      timestamp: 1746652545
+      file:
+        name: 1746652545-Upgrade-to-Go-1.24.3..yaml
+        checksum: c5b03e2e2685ef389a269f5904fdc53590c7e1b1
+