fix: harden auto-merge workflows

[utkarsh232005]

Summary

• Pass the pull request number explicitly to the Dependabot auto-merge action
• Avoid failing the approval auto-merge workflow when required checks are still pending

Why

The Dependabot auto-merge workflow was running after rebases, but the action invoked an empty PR argument because pull-request-number was not set. That made every run fail even though the workflow was triggered correctly.

The approval auto-merge workflow can also fire before required checks complete, which produced red runs for a normal pending-check state.

Validation

• Verified pull-request-number is required in peter-evans/enable-pull-request-automerge action metadata
• Ran git diff --check

[codescene-delta-analysis]

No application code in the PR — skipped Code Health checks.

See analysis details in CodeScene

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Codecov Report

✅ All modified and coverable lines are covered by tests.

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Review details

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 84cc4b49-4fc7-422b-9272-515929e59532

📥 Commits

Reviewing files that changed from the base of the PR and between f1777e4 and a323ce5.

📒 Files selected for processing (2)

• .github/workflows/auto-merge-dependabot.yml
• .github/workflows/auto-merge.yml

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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