Merge upstream graalvm-community-jdk21u/master into mandrel/23.1 (2026-05-13)

[Karm]

Merge upstream graalvm-community-jdk21u/master into mandrel/23.1 (2026-05-13)

This is a merge from upstream which includes the following upstream changes:

• Unmark suite files and bump version to 23.1.12 [skip ci] graalvm-community-jdk21u#278

[Karm]

@zakkak @jerboaa This PR was created as:

karm@laptop:~/workspaceRH/mandrel-packaging/release-scripts (new-release-infra *)$ ./mandrel-ops.java sync-upstream --dir /home/karm/tmp/mandrel_23.1 --fork Karm/graal --repo graalvm/mandrel --base-branch mandrel/23.1 --next-version 23.1.12.0 --upstream-url https://github.com/graalvm/graalvm-community-jdk21u.git --upstream-branch master
Fetching master from https://github.com/graalvm/graalvm-community-jdk21u.git
Merging upstream branch into current branch.
Resolved conflict in: /home/karm/tmp/mandrel_23.1/truffle/mx.truffle/suite.py
Resolved conflict in: /home/karm/tmp/mandrel_23.1/substratevm/mx.substratevm/suite.py
Resolved conflict in: /home/karm/tmp/mandrel_23.1/compiler/mx.compiler/suite.py
Resolved conflict in: /home/karm/tmp/mandrel_23.1/espresso/mx.espresso/suite.py
Resolved conflict in: /home/karm/tmp/mandrel_23.1/vm/mx.vm/suite.py
Resolved conflict in: /home/karm/tmp/mandrel_23.1/wasm/mx.wasm/suite.py
Resolved conflict in: /home/karm/tmp/mandrel_23.1/regex/mx.regex/suite.py
Resolved conflict in: /home/karm/tmp/mandrel_23.1/sdk/mx.sdk/suite.py
Resolved conflict in: /home/karm/tmp/mandrel_23.1/tools/mx.tools/suite.py
GPG Key (fingerprint d72501ba9a2a624b000f38858cdbce4379381fc4)
Passphrase: 
Pushing branch to fork git@github.com:Karm/graal.git
Assigning Sync PR to milestone: 23.1.12.0
PR created: https://github.com/graalvm/mandrel/pull/974

So the issue with not automatically assigning milestones is fixed.
It's also fixed that the script doesn't make up "release" attributes in suite.py.

[zakkak]

LGTM. Thanks @Karm