[Fix][CI] Correct pull_request_target YAML syntax in auto-review workflow

[z1ying]

Purpose

Fix #144

Problem

GitHub Actions failed with: Unexpected value 'types'

Solution

• Corrected indentation under pull_request_target
• Ensured valid event structure

Result

• Workflow loads successfully without syntax errors

Summary by CodeRabbit

• Chores
  • Internal workflow configuration maintenance with no user-facing changes.

[coderabbitai]

📝 Walkthrough

Walkthrough

A single-line YAML structural adjustment in .github/workflows/auto-reviewer.yml moves the types: [opened, reopened] filter to be correctly nested under the pull_request_target event block. No trigger behavior, job steps, or reviewer logic changes.

Changes

Workflow YAML Structure Fix

Layer / File(s)	Summary
Move types filter under pull_request_target block .github/workflows/auto-reviewer.yml	Repositions types: [opened, reopened] to be correctly nested under the pull_request_target event key; no behavioral change to the workflow triggers or jobs.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

A rabbit hopped past the YAML one day,
and nudged a stray line back into its bay.
"Indentation matters," it twitched its nose,
"Nested just right — that's how structure goes!"
🐇✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: fixing YAML syntax (specifically indentation) in the auto-reviewer workflow's pull_request_target configuration, which directly matches the PR objectives and raw summary.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[Flink-ddd]

Thank you for your contribution, Could you add an issue to this PR? If this issue exists, please do so. otherwise, please create one.

[z1ying]

Thank you for your contribution, Could you add an issue to this PR? If this issue exists, please do so. otherwise, please create one.

Submitted an issue as requested. Thanks!

[Flink-ddd]

LGTM, Thanks.