Engine release due: 3.21.2

[github-actions]

Summary

A @loopover/engine release appears due.

• Proposed version: 3.21.2
• Latest tag: engine-v3.21.1
• npm latest: 3.21.1
• Package version in repo: 3.21.1
• Unreleased engine-related commits: 1

Unreleased Commits

• f0cdfbe fix(miner): count the prompt-cache tiers as input tokens in the engine's own parsers (fix(miner): count the prompt-cache tiers as input tokens in the engine's own parsers #10252)

Changed Files

• packages/loopover-engine/src/miner/agent-sdk-driver.ts
• packages/loopover-engine/src/miner/cli-subprocess-driver.ts
• packages/loopover-engine/test/agent-sdk-driver.test.ts
• packages/loopover-engine/test/cli-subprocess-driver.test.ts
• test/unit/agent-sdk-driver.test.ts
• test/unit/cli-subprocess-driver.test.ts

Release-Prep Checklist

• Bump packages/loopover-engine/package.json to 3.21.2
• Run npm run build --workspace @loopover/engine
• Run npm run test:engine-pack
• Run npm run actionlint
• Merge the release-please PR (it maintains this package's CHANGELOG.md natively)
• Tag engine-v3.21.2
• Watch npm trusted publishing and the GitHub Release job

[linear-code]

JSO-7154