v1.4.1 release notes

[shawnh2]

What type of PR is this?

What this PR does / why we need it:

Release notes for v1.4.1, ref #6258

Which issue(s) this PR fixes:

Fixes #

Release Notes: Yes/No

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.50%. Comparing base (6775832) to head (3bd9925).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6254      +/-   ##
==========================================
+ Coverage   70.46%   70.50%   +0.03%     
==========================================
  Files         220      220              
  Lines       36625    36625              
==========================================
+ Hits        25809    25821      +12     
+ Misses       9286     9276      -10     
+ Partials     1530     1528       -2     

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[zhaohuabing]

LGTM thanks!