edit storage serial_number

[amanr032]

What this PR does / why we need it:
Modification of Storage Serial Number

Which issue this PR fixes (optional, in fixes #(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #

Release note:

[codecov]

Codecov Report

Merging #959 (32dd616) into master (6ef9d9f) will decrease coverage by 0.80%.
The diff coverage is 50.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #959      +/-   ##
==========================================
- Coverage   71.37%   70.56%   -0.81%     
==========================================
  Files         187      192       +5     
  Lines       23071    23205     +134     
  Branches     3510     3568      +58     
==========================================
- Hits        16466    16374      -92     
- Misses       5490     5712     +222     
- Partials     1115     1119       +4     

Impacted Files	Coverage Δ
delfin/drivers/macro_san/ms/ms_handler.py	64.58% <50.00%> (-0.51%)	⬇️
delfin/leader_election/interface.py	48.00% <0.00%> (-11.38%)	⬇️
delfin/drivers/driver.py	57.81% <0.00%> (-4.69%)	⬇️
delfin/wsgi/common.py	64.28% <0.00%> (-3.46%)	⬇️
delfin/drivers/utils/tools.py	62.72% <0.00%> (-1.93%)	⬇️
delfin/api/validation/validators.py	44.35% <0.00%> (-1.74%)	⬇️
delfin/task_manager/tasks/telemetry.py	70.00% <0.00%> (-1.43%)	⬇️
delfin/cryptor.py	90.90% <0.00%> (-1.40%)	⬇️
delfin/api/v1/alerts.py	74.54% <0.00%> (-1.32%)	⬇️
...in/drivers/netapp/dataontap/performance_handler.py	79.59% <0.00%> (-1.18%)	⬇️
... and 60 more

[joseph-v]

LGTM
CI failure is tracked in
#923

[sushanthakumar]

LGTM