ci: use Zulu for the release smoke (fixes windows-aarch64) (#45)

* ci: use Zulu for the release smoke (fixes windows-aarch64)

The first run failed only on windows-aarch64, at "Set up JDK 25": Temurin
has no Windows/ARM64 JDK 25 build yet. Zulu ships JDK 25 for all six
targets (and is already the distribution used in publish.yml), so switch
the whole matrix to Zulu for a uniform, working setup. The other five legs
(linux x64/arm64, macOS x64/arm64, windows x64) passed on the first run.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* ci: keep distribution as a per-leg matrix key

Make the JDK distribution explicit per matrix leg (all zulu) and reference
${{ matrix.distribution }} in setup-java, so a single target can be pointed
at another vendor later without restructuring the step.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

Author: dfa1

.github/workflows/release-smoke.yml

@@ -51,13 +51,16 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
+        # distribution is per-leg for clarity and easy override. Zulu ships JDK 25
+        # for all six targets (incl. Windows/ARM64, which Temurin does not yet) and
+        # matches publish.yml; change a single leg here if a target needs another.
         include:
-          - { os: ubuntu-latest,    classifier: linux-x86_64 }
-          - { os: ubuntu-24.04-arm, classifier: linux-aarch64 }
-          - { os: macos-13,         classifier: osx-x86_64 }
-          - { os: macos-14,         classifier: osx-aarch64 }
-          - { os: windows-latest,   classifier: windows-x86_64 }
-          - { os: windows-11-arm,   classifier: windows-aarch64 }
+          - { os: ubuntu-latest,    classifier: linux-x86_64,    distribution: zulu }
+          - { os: ubuntu-24.04-arm, classifier: linux-aarch64,   distribution: zulu }
+          - { os: macos-13,         classifier: osx-x86_64,      distribution: zulu }
+          - { os: macos-14,         classifier: osx-aarch64,     distribution: zulu }
+          - { os: windows-latest,   classifier: windows-x86_64,  distribution: zulu }
+          - { os: windows-11-arm,   classifier: windows-aarch64, distribution: zulu }
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout (smoke sources only)
@@ -66,7 +69,7 @@ jobs:
       - name: Set up JDK 25
         uses: actions/setup-java@v4
         with:
-          distribution: temurin
+          distribution: ${{ matrix.distribution }}
           java-version: '25'
 
       - name: Set up JBang