* fix: nocache feature code rot
The MBChunk::snapshot code when using the "nocache" option no longer
compiles - this commit updates it to match the not(nocache) code.
* build: use updated broken_intra_doc_links name
The broken_intra_doc_links lint was renamed
rustdoc::broken_intra_doc_links
https://doc.rust-lang.org/rustdoc/lints.html
* chore: Update deps (including arrow 5.0.0 --> arrow 5.1.0)
* chore: update all the things
* refactor: Update serving readiness check due to change in Tonic API
* chore: update more deps
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>