chore: bump to EMQX OTP 26.2.3-1

Author: qzhuyan

RELEASE.md

@@ -3,7 +3,7 @@ List per major version used by EMQX, quic, rocksdb builds
 OTP version from emqx/otp.git:
 
 + OTP-25.3.2-2
-+ OTP-26.2.1-2
++ OTP-26.2.3-1
 
 Elixir version from elixir-lang/elixir.git:
 NOTE: Only one version is allowed.