Add passport number format for en_GB locale

[panilya]

Issue: #268

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.93%. Comparing base (d053424) to head (d2ad7a0).

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #316      +/-   ##
============================================
+ Coverage     94.88%   94.93%   +0.05%     
- Complexity     1927     1928       +1     
============================================
  Files           202      202              
  Lines          3853     3853              
  Branches        383      383              
============================================
+ Hits           3656     3658       +2     
+ Misses          100       99       -1     
+ Partials         97       96       -1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.