fix(ci): wire stage matrix size into runtime

[sundy-li]

I hereby agree to the terms of the CLA available at: https://docs.databend.com/dev/policies/cla/

Summary

Fixes #19598

• pass the stage matrix size dimension into the sqllogic stage action
• export TEST_STAGE_SIZE so prepare_stage.sh can switch between small and large
• add a lightweight regression check to make lint-yaml for this wiring

Changes

• add a required size input to .github/actions/test_sqllogic_stage
• pass ${{ matrix.size }} from .github/workflows/reuse.sqllogic.yml
• add .github/scripts/check_sqllogic_stage_size_wiring.py and call it from lint-yaml

Tests

• Regression check script: python3 .github/scripts/check_sqllogic_stage_size_wiring.py
• YAML parse validation for the touched workflow and action files

Type of change

• Bug fix (non-breaking change which fixes an issue)

---

This change is 

[github-actions]

🤖 CI Job Analysis

Workflow: 23489351842

📊 Summary

• Total Jobs: 86
• Failed Jobs: 8
• Retryable: 0
• Code Issues: 8

❌ NO RETRY NEEDED

All failures appear to be code/test issues requiring manual fixes.

🔍 Job Details

• ❌ linux / sqllogic / stage (fs, http, sub_path, large): Not retryable (Code/Test)
• ❌ linux / sqllogic / stage (fs, hybrid, sub_path, large): Not retryable (Code/Test)
• ❌ linux / sqllogic / stage (s3, http, full_path, large): Not retryable (Code/Test)
• ❌ linux / sqllogic / stage (fs, hybrid, full_path, large): Not retryable (Code/Test)
• ❌ linux / sqllogic / stage (s3, hybrid, sub_path, large): Not retryable (Code/Test)
• ❌ linux / sqllogic / stage (s3, hybrid, full_path, large): Not retryable (Code/Test)
• ❌ linux / sqllogic / stage (s3, http, sub_path, large): Not retryable (Code/Test)
• ❌ linux / sqllogic / stage (fs, http, full_path, large): Not retryable (Code/Test)

---

🤖 About

Automated analysis using job annotations to distinguish infrastructure issues (auto-retried) from code/test issues (manual fixes needed).