Migrate Jakarta Persistence to the jakartaee org in Github

Per the 2021 Jakarta EE Program Plan we'd like to move the Jakarta Persistence repo into the jakartaee org in Github. See also:

• https://www.eclipse.org/lists/messaging-dev/msg00028.html
• https://github.com/eclipse-ee4j/jpa-api/issues/376

Here are the exact repos that needs to be moved:

from: https://github.com/eclipse-ee4j/jpa-api to: https://github.com/jakartaee/persistence