Log Message:
erlang: Update to 23.3.1

upstream changes:
-----------------
Patch Package:           OTP 23.3.1
Git Tag:                 OTP-23.3.1
Date:                    2021-03-30
Trouble Report Id:       OTP-17279
Seq num:
System:                  OTP
Release:                 23
Application:             ssh-4.11.1
Predecessor:             OTP 23.3

 Check out the git tag OTP-23.3.1, and build a full OTP system
 including documentation. Apply one or more applications from this
 build as patches to your installation using the 'otp_patch_apply'
 tool. For information on install requirements, see descriptions for
 each application version below.

 ---------------------------------------------------------------------
 --- ssh-4.11.1 ------------------------------------------------------
 ---------------------------------------------------------------------

 The ssh-4.11.1 application can be applied independently of other
 applications on a full OTP 23 installation.

 --- Fixed Bugs and Malfunctions ---

  OTP-17279    Application(s): ssh

               The idle_time timer was not cancelled when a channel
               was opened within the timeout time on an empty
               connection that have had channels previously.

 Full runtime dependencies of ssh-4.11.1: crypto-4.6.4, erts-9.0,
 kernel-5.3, public_key-1.6.1, stdlib-3.4.1
 ---------------------------------------------------------------------

Changes for 23.3 are at https://erlang.org/download/OTP-23.3.README