feat(connector): add click to pay feature for trustpay (#8304)

Co-authored-by: Anurag Singh <anurag.singh.001@Anurag-Singh-WPMHJ5619X.local>
Co-authored-by: hyperswitch-bot[bot] <148525504+hyperswitch-bot[bot]@users.noreply.github.com>
Co-authored-by: AkshayaFoiger <131388445+AkshayaFoiger@users.noreply.github.com>
Files to modify:


**transformers.rs**
  Modify existing code

**utils.rs**
  Add:
    - function: private::get_token_expiry_year_2_digit
    - function: private::get_token_expiry_year_2_digit
    - function: private::get_token_expiry_month_year_2_digit_with_delimiter
    - function: private::get_token_expiry_month_year_2_digit_with_delimiter