[FIX] - Fastify Deprecated Warning

[pauloedurezende]

• Update the fastify and protobufjs packages
• Use the preHandler instead beforeHandlers - Fix Issue apollo-server-fastify warning beforeHandler has been deprecated #3477

[apollo-cla]

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[bkulyk]

Looks good to me.

[dfee]

these sorts of holdups are silly.

@pauloedurezende can you merge in the latest commits, so your branch is up to date?
@abernix you were the last committer and an authorized merger. can you take a look and get this merged?

[markrzen]

Duplicate of #2391

[abernix]

Closing as duplicate of #3527 and #2391. It is absolutely on my mind to get the major version bumped in the next major version of Apollo Server. I understand the disappointing delay, in particular on the Fastify updates, but opening more of these same/similar PRs won't get the blockers unblocked for that work. We are trying to get to a stage where this is less problematic both now, and in the future. (See also, #3184 and #3576)