Configure fastify bodyLimit

[astelmashenko]

faas-js-runtime is using Fastify internally. I looked through the source and I did not find how to configure request bodyLimit, only rawBody and logger are configured.

May be I'm missing something, if yes, then please point me where to check.

[lholmquist]

once this lands, it should address this issue: #380

[lholmquist]

This is now in the released 2.5.0 version

[astelmashenko]

Thank you!