git: openjdk/jdk21u-dev: master: 8321894: Bump update version for OpenJDK: 21.0.3

[Severin Gehwolf]

Changeset: fb345736
Author:    Severin Gehwolf <sgehwolf at openjdk.org>
Date:      2023-12-13 14:54:42 +0000
URL:       https://git.openjdk.org/jdk21u-dev/commit/fb34573636079ff1ddbf193f86e72b4fb55c1e7d

8321894: Bump update version for OpenJDK: 21.0.3

Reviewed-by: goetz

! .jcheck/conf
! make/conf/version-numbers.conf