docs: fix 2.9 release note (#10146)

## Checklist
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[release branch maintenance
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releasenotes/notes/fix-ssi-permissions-647693af3d5ce49d.yaml

@@ -1,5 +1,5 @@
 ---
 fixes:
   - |
-    SSI: This fixes incorrect file permissions on lib-injection images for 2.10.x releases.
+    SSI: Fixes incorrect file permissions on lib-injection images.