Fix Gradle 9.3.0 compatibility in debian JDK packaging task

[Copilot]

Gradle 9.3.0 upgrade exposed an indentation bug causing packageJdkDebian task to fail with "Could not find method exec()". Code blocks at lines 105-140 were executing during configuration phase instead of task execution phase.

Changes

• Move println and three architecture-specific if blocks inside the doLast closure
• Fix inconsistent indentation (tabs vs spaces) in affected section

Technical Details

The issue occurs because project.exec() behaves differently in configuration vs execution context. Before:

task packageJdkDebian {
    doLast {
        // ... setup code ...
    }

// BUG: These are outside doLast, run during configuration
if ("$arch" == "armhf") {
    project.exec { ... }  // Fails in Gradle 9.3.0
}

After:

task packageJdkDebian {
    doLast {
        // ... setup code ...
        
        if ("$arch" == "armhf") {
            project.exec { ... }  // Runs during task execution
        }
    }
}

This matches the pattern used in linux/jre/debian/build.gradle and other working build files.

Original prompt

Fix the failing GitHub Actions workflow Check JDK on microsoft 11 Debian
Analyze the workflow logs, identify the root cause of the failure, and implement a fix.
Job ID: 61465704823
Job URL: https://github.com/adoptium/installer/actions/runs/21356708045/job/61465704823

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[steelhead31]

Looks good.