Apply Commonalities 0.8.0 enhancements for OTPValidation

[bigludo7]

Problem description
List of Commonalities PR relevant for this API

• CAMARA_common.yaml - alignment with OWASP and other linting rules Commonalities#590 - note: we have to add for the x-correlator maxLength: 256 and update description. This is not a breaking change as x-correlator has already a pattern limiting at 256.
• Clarification on string `maxLength' Commonalities#620 - same 590
• fix(design-guide): add rule for undeclared properties in request bodies Commonalities#634
• Add mandatory info.description templates to common artifacts and samples Commonalities#635
• fix: x-camara-commonalities to use full version string Commonalities#599 - handled by the release tool
• Clarification meaning of {{API_NAME}}.{{SPECIFIC_CODE}} Commonalities#541
• fix(design-guide): add rule for undeclared properties in request bodies Commonalities#634
• Add mandatory info.description templates to common artifacts and samples Commonalities#635

List of Commonalities PR not relevant:

• New 409 error code called INCOMPATIBLE_STATE Commonalities#550
• docs: add device identifier constraints per #513 Commonalities#576
• CAMARA_Common.yaml aligment with multiple device identifiers logic Commonalities#570
• Correcting status code 409 related error information. Commonalities#569
• fix : 'Addr' schema objects updated to 'Address' Commonalities#563
• Array description guideline Commonalities#559
• Clarifications for asynchronous responses Commonalities#575
• Relaxing NAI length restriction from 253 to 2048 Commonalities#597
• Event subscription template - alignment with OWASP and other linting rules Commonalities#591
• Improve authentication mechanism for subscription events Commonalities#580
• Subscription Testing Definitions Enhancements - Private JWT Key scenario Commonalities#583
• Add business-level outcome guidance to API Design Guide Commonalities#578
• Cloudevents decoupled from EventTypeNotification scheme in Event Subscription Template Commonalities#604
• fix: restructure artifacts directory for $ref consumption Commonalities#606
• Add pagination shared components and example to artifacts Commonalities#617
• Refactor Invalid Token Context Error Commonalities#607
• Changed response pagination guidelines Commonalities#610
• feat: add implicit-subscription API template Commonalities#612
• fix: inline resource-flavoured 400/422 in implicit-subscription template Commonalities#629
• Empty Request Body Test proposal. Template Artifact for 400 Syntax Commonalities#618

Expected behavior
Fix all relevant issues

Alternative solution

Additional context