package packing does not tolerate parallel execution

[turadg]

Describe the bug

Since adopting Lerna v5 (#5927) package publishing fails on typecheck (https://github.com/Agoric/agoric-sdk/actions/runs/5652413494/job/15311997789). It happens governance package has been build but not cleaned up yet when inter-protocol is built.

To Reproduce

Steps to reproduce the behavior:

1. in packages/governance, yarn prepack
2. in packages/inter-protocol, yarn prepack

See ~50 errors similar to,

$ tsc --build jsconfig.build.json
../vats/src/ibc.js:36:15 - error TS2304: Cannot find name 'Bytes'.

36  * @property {Bytes} [data]
                 ~~~~~

../vats/src/ibc.js:49:14 - error TS2304: Cannot find name 'ProtocolHandler'.

49  * @returns {ProtocolHandler & BridgeHandler} Protocol/Bridge handler
                ~~~~~~~~~~~~~~~

../vats/src/ibc.js:59:39 - error TS2304: Cannot find name 'Connection'.

59   /** @type {MapStore<string, Promise<Connection>>} */
                                         ~~~~~~~~~~

Expected behavior

They both pack without error.

Additional context

The work-around for now is to tell Lerna to operate without concurrency. (https://stackoverflow.com/a/73888828/46040)