fix(ci): increase workflow timeout to 30 minutes for self-correction cycles

[ezeanyicollins]

Problem

The PatchPro workflow was timing out at 10 minutes, interrupting the self-learning correction system before it could complete.

Evidence from run #93:

• System was processing batch 6/54 when canceled
• Generated patches were being validated
• Self-correction loop was actively fixing malformed patches
• Hit 10-minute timeout and was manually canceled

Solution

Increase `timeout-minutes` from 10 to 30 minutes to allow the self-correction system to:

1. Generate patches with LLM (multiple API calls per batch)
2. Validate each patch with `git apply --check`
3. Feed errors back to LLM for regeneration
4. Retry with corrected prompts until valid patches are produced

Testing

• Workflow will now have sufficient time to complete all 54 batches
• Self-correction cycles can iterate multiple times if needed
• Prevents premature cancellation during active patch generation

Fixes the timeout issue observed in workflow run #93.