Add manifest validation to integration test

[dareste]

Proposed changes

The integration test now verifies that the generated supportpkg contains a valid manifest.json file.

Tests include:

• File existence.
• JSON syntax validation.
• Presence of the expected keys.

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING guide
• I have proven my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have ensured the README is up to date
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch on my own fork

[Copilot]

Pull Request Overview

Enhances the integration test by adding manifest validation to ensure generated supportpkg files contain valid manifest.json with proper structure and required fields.

• Adds a manifest validation step to the integration test workflow
• Creates a comprehensive validation script that checks file existence, JSON syntax, and required keys
• Implements detailed error reporting with specific exit codes for different failure scenarios

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
.github/workflows/integration-test.yml	Adds manifest validation step to integration test workflow
.github/scripts/verify-manifest.sh	New script that validates manifest.json structure and content

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[mrajagopal]

Have we considered tallying the files with that captured in the manifest.json?

I have used the below set of commands to confirm the files in the tarball are in the manifest and vice versa:

find ./test -type f | sed 's/^\.\/test//' > find-output.txt  
dir=test; jq -r '.commands[].output' ./${dir}/manifest.json > manifest-output.txt
grep -vxFf find-output.txt manifest-output.txt
grep -vxFf manifest-output.txt find-output.txt

• The first grep finds lines in manifest-output.txt that are NOT present in find-output.txt, this should yield zero files.

• The second grep finds lines in find-output.txt that are not present in manifest-output.txt which should yield manifest.json and supportpkg.log only.

There is probably a better way, but a start seeing that I had already invested time in developing this using shell commands.

[mrajagopal]

All good.