Documentation updates for Validation 3.1

[mswatosh]

With the rename from Jakarta Bean Validation to Jakarta Validation, we'll want to inspect the docs for any references to Bean Validation and update them to Validation. Places to update include:

• https://openliberty.io/docs/latest/jakarta-ee.html
• https://openliberty.io/docs/latest/microprofile-config-properties.html (This should be discussed with the MP team first)

We should also consider a new topic to cover using Jakarta Validation, if we decide to create that it should be done under a separate issue.