chore(deps): bump ast-transpiler lock to master (Java emit idempotency)

[carlotestor]

Summary

Refresh package-lock.json for github:ccxt/ast-transpiler#master to f61e6c7143da.

That tip includes merged ast-transpiler#61 (Java finalX / ReassignedVars emit idempotency) and a regenerated dist/ (restoreFinalVarMutations, createProgramCache). The previous lock resolved an older master commit whose committed dist lagged source.

package.json already pins github:ccxt/ast-transpiler#master — this PR only moves the lockfile resolved SHA.

Resolved URL is git+https://... (not git+ssh://) so npm ci works on runners without GitHub SSH keys.

Verification

• npm install github:ccxt/ast-transpiler#master → lock f61e6c7143da
• rg restoreFinalVarMutations node_modules/ast-transpiler/dist/transpiler.js → hits present
• global.checker absent from fixed dist path (context API from Kraken market bug in fetch_balance #60)

Related

• fix(java): make the Java emit idempotent (M1–M5 per-emit state leaks) ast-transpiler#61
• refactor: replace process globals with an explicit transpile context ast-transpiler#60
• Perf PRs that benefit from warm worker reuse: perf(build): java transpile single-process piscina threads #29379 perf(build): go transpile single-process piscina threads #29380 perf(build): csharp transpile single-process piscina threads #29381