Changes to POST /api/v1/subscribe

added the new topup_in_progress enum value to the allOf[#/components/schemas/Error]/error/oneOf[subschema #1: LegacyErrorCode] response property for the response status 429

added the new topup_in_progress enum value to the allOf[#/components/schemas/Error]/error/oneOf[subschema #2: StructuredError]/code response property for the response status 429

added the new topup_in_progress enum value to the error/oneOf[subschema #1: LegacyErrorCode] response property for the response status 401

added the new topup_in_progress enum value to the error/oneOf[subschema #1: LegacyErrorCode] response property for the response status 4XX

added the new topup_in_progress enum value to the error/oneOf[subschema #1: LegacyErrorCode] response property for the response status 500

added the new topup_in_progress enum value to the error/oneOf[subschema #1: LegacyErrorCode] response property for the response status default

added the new topup_in_progress enum value to the error/oneOf[subschema #2: StructuredError]/code response property for the response status 401

added the new topup_in_progress enum value to the error/oneOf[subschema #2: StructuredError]/code response property for the response status 4XX

added the new topup_in_progress enum value to the error/oneOf[subschema #2: StructuredError]/code response property for the response status 500

added the new topup_in_progress enum value to the error/oneOf[subschema #2: StructuredError]/code response property for the response status default