Thomas Eizinger 2130923aa5
ci: remove protoc installation
With all crates have received a release since https://github.com/libp2p/rust-libp2p/issues/3024, building the baseline rustdoc no longer required `protoc` and we can thus remove it from our CI entirely.

Resolves #3539.

Pull-Request: #3858.
2023-05-08 04:08:44 +00:00
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2023-05-08 04:08:44 +00:00