Update pg16-merge-validation.yml

[reshke]

Fixes #ISSUE_Number

What does this PR do?

Type of Change

• Bug fix (non-breaking change)
• New feature (non-breaking change)
• Breaking change (fix or feature with breaking changes)
• Documentation update

Breaking Changes

Test Plan

• Unit tests added/updated
• Integration tests added/updated
• Passed make installcheck
• Passed make -C src/test installcheck-cbdb-parallel

Impact

Performance:

User-facing changes:

Dependencies:

Checklist

• Followed contribution guide
• Added/updated documentation
• Reviewed code for security implications
• Requested review from cloudberry committers

Additional Context

CI Skip Instructions

---

[leborchuk]

Sorry, new test fails with

make: *** No rule to make target 'create-demo-cluster'.  Stop.
Error: Process completed with exit code 2.

[tuhaihe]

Sorry, new test fails with

make: *** No rule to make target 'create-demo-cluster'.  Stop.
Error: Process completed with exit code 2.

Now the test can run well, but has a new problem:

=== Running Tests for ic-small-opt-off ===
Make configurations: [
  "src/test/regress:installcheck-small"
]
-bash: line 13: jq: command not found

All tests completed successfully

Let me try to fix it later.

[tuhaihe]

Now the workflow can run well, but the test failed. Please take a look at the file I've attached.

regression.diffs.txt

We can merge this PR and fix the test errors later, or fix them in this PR? What do you think? @reshke

[tuhaihe]

Updates:

• Now the CI workflow supports checking and displaying the regression diffs, without downloading the files.

[leborchuk]

Yep, see the working test. Fixing is a long process. Let's start by showing the problems.