git: openjdk/jdk25u: master: 8363965: GHA: Switch cross-compiling sysroots to Debian bookworm

[Aleksey Shipilev]

Changeset: bc2c7096
Branch: master
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2025-07-31 14:45:10 +0000
URL:       https://git.openjdk.org/jdk25u/commit/bc2c70969b7d8036c9ec19fa5a8e9dc3208d34c8

8363965: GHA: Switch cross-compiling sysroots to Debian bookworm

Backport-of: 3fe0d29ec3b5b327d633726677ba1809eec27665

! .github/workflows/build-cross-compile.yml