Modify safety reporting Email

[zyjhtangtang]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespace from that line:
/kind documentation

What this PR does / why we need it:

Special notes for your reviewer:

Does this PR introduce a user-facing change?

 None

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 45.24%. Comparing base (7763e7c) to head (1b4de3f).
Report is 47 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #2214       +/-   ##
===========================================
- Coverage   58.93%   45.24%   -13.70%     
===========================================
  Files         210      404      +194     
  Lines       18968    27811     +8843     
===========================================
+ Hits        11179    12583     +1404     
- Misses       6707    13997     +7290     
- Partials     1082     1231      +149     

Flag	Coverage Δ
unittests	45.24% <ø> (-13.70%)	⬇️

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[rambohe-ch]

/LGTM

[rambohe-ch]

#2186