`npm version` fails when setting the same version, which we do in CI
when publishing release packages. This updates our uses of npm version
to pass `--allow-same-version`.

Example failure in the publishing pipeline due to this issue:
<https://dev.azure.com/fluidframework/internal/_build/results?buildId=151607&view=logs&j=3dc8fd7e-4368-5a92-293e-d53cefc8c4b3&t=035f10b1-6721-511e-bd48-d7e028467fc2>