Set limit for gh pr list to 100 to avoid cherrypick limit

[khanhtc1202]

What this PR does:

Why we need it:

The default value for the gh pr list command is 30, which is too small in case of 3-week cycle for a patch release now. We set it to 100 to avoid the error cherry-pick failed to apply.

Which issue(s) this PR fixes:

Fixes #

Does this PR introduce a user-facing change?:

• How are users affected by this change:
• Is this breaking change:
• How to migrate (if breaking change):

[Warashi]

👍🏻

[ffjlabo]

👍

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 25.57%. Comparing base (4a97422) to head (52e53da).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #5666   +/-   ##
=======================================
  Coverage   25.57%   25.57%           
=======================================
  Files         478      478           
  Lines       51240    51240           
=======================================
  Hits        13105    13105           
  Misses      37130    37130           
  Partials     1005     1005           

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