refactor!: Support array type for `CustomProperty.DefaultValue` field

[zyfy29]

BREAKING CHANGE: CustomProperty.DefaultValue was *string but now is any.

Fixes: #3692. Fixes: #3741.

[codecov[bot]]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 91.11%. Comparing base (138500e) to head (6abfd62).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3740   +/-   ##
=======================================
  Coverage   91.11%   91.11%           
=======================================
  Files         187      187           
  Lines       16697    16697           
=======================================
  Hits        15213    15213           
  Misses       1296     1296           
  Partials      188      188           

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[zyfy29]

Oh, sorry, now it should be OK

[gmlewis]

I don't think I agree with the API design for this, I was planning on having this discussion on the issue when I had time to pick it up or someone else wanted to. This comment is to hold the PR while we discuss the implementation in #3692.

Ah, OK. Let's put this PR on hold then while it is being discussed.