RFR: Updated Code Owners for JDK 20 [v5]

[Jesper Wilhelmsson]

> This should be done after each release to make sure the list is kept up to date.

Jesper Wilhelmsson has updated the pull request incrementally with one additional commit since the last revision:

  Updated jdk.jartool

-------------

Changes:
  - all: https://git.openjdk.org/guide/pull/103/files
  - new: https://git.openjdk.org/guide/pull/103/files/f8aa6641..d35f3bb6

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=guide&pr=103&range=04
 - incr: https://webrevs.openjdk.org/?repo=guide&pr=103&range=03-04

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/guide/pull/103.diff
  Fetch: git fetch https://git.openjdk.org/guide.git pull/103/head:pull/103

PR: https://git.openjdk.org/guide/pull/103