Deploy latest go-ipfs binaries to preload staging nodes automatically

[guseggert]

Done Criteria:
When a code change is pushed, it is deployed to preload staging nodes automatically, and we have monitoring setup to alert us if the change caused any issues.

Why important:
Performing this whenever a binary is created (or on a ~daily cadence) catches issues with our code before we are in the middle of a full release. Identifying/addressing issues in advance increases that our release will happen according to schedule.

Customer:
go-ipfs core developers

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