fix(OtpInput): should show mask char in readonly/disabled status

[ArgoZhang]

Link issues

fixes #6211

Summary By Copilot

Regression?

• Yes
• No

Risk

• High
• Medium
• Low

Verification

• Manual (required)
• Automated

Packaging changes reviewed?

• Yes
• No
• N/A

☑️ Self Check before Merge

⚠️ Please check all items below before review. ⚠️

• Doc is updated/provided or not needed
• Demo is updated/provided or not needed
• Merge the latest code from the main branch

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (80ef545) to head (303d6bd).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #6212   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          704       704           
  Lines        31101     31093    -8     
  Branches      4394      4395    +1     
=========================================
- Hits         31101     31093    -8     

Flag	Coverage Δ
BB	100.00% <100.00%> (?)

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