[jdk21u-dev] RFR: 8331639: [21u]: Bump GHA bootstrap JDK to 21.0.3

[Severin Gehwolf]

On Fri, 3 May 2024 09:28:43 GMT, Christoph Langer <clanger at openjdk.org> wrote:

> From time to time the GHA bootstrap JDK in the update releases should be bumped. So let's take the current verion 21.0.3 from Temurin.

LGTM.

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

Marked as reviewed by sgehwolf (Reviewer).

PR Review: https://git.openjdk.org/jdk21u-dev/pull/550#pullrequestreview-2037813499