Using `runFork` for Logging in `Effect.gen`

function getUpserts() {
  return E.gen(function* () {
    const [upsertEffects, skippedUpserts] = yield* foo();

    if (skippedUpserts.length > 0) {
      E.runFork(
        E.logWarning(
          `Some upserts skipped due to missing: `,
          JSON.stringify(skippedUpserts),
        ),
      );
    }

    return E.all(upsertEffects, { concurrency: "unbounded" });
  });
}