doc: upate 1.5 release note for port typo

Signed-off-by: cong <q1875486458@gmail.com>

Author: woodgear

site/content/en/news/releases/v1.5.md

@@ -112,6 +112,7 @@ Envoy Gateway v1.5.0 introduces powerful enhancements, resolves critical issues,
 - Fixed listener drain caused by `HTTPRoute` with sessionPersistence.
 - Fixed deployment creation block when `EnvoyProxy` secret is missing.
 - Increased `earlyRequestHeaders` limit from 16 to 64.
+- Fixed Listener port limit typo 65353 -> 65535.
 
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