Fixes #37045

Hi Spring Boot team,

This PR fixes 3 broken links to https://docs.oracle.com in the Core Features section of the documentation.

In attributes.adoc, I found the attribute java-api that needed to be fixed:

AS-IS

:java-api: https://docs.oracle.com/javase/17/docs/api

TO-BE

:java-api: https://docs.oracle.com/en/java/javase/17/docs/api

Then I updated the following links that uses the java-api attribute:

  • {java-api}/java.base/java/time/Duration.html#parse(java.lang.CharSequence)
  • {java-api}/java.base/java/time/Period.html#parse(java.lang.CharSequence)
  • {java-api}/java.logging/java/util/logging/package-summary.html

Comment From: scottfrederick

@jongwooo Thank you very much for the contribution.