docs: Ensure the CI passes for docs (#2666)

* Fix docs

Signed-off-by: Alexandru Vasile <[email protected]>

* Update client/relay-chain-rpc-interface/src/reconnecting_ws_client.rs

Co-authored-by: Davide Galassi <[email protected]>

* Update cargo.lock with substrate

Signed-off-by: Alexandru Vasile <[email protected]>

* Update Cargo.lock for polkadot

Signed-off-by: Alexandru Vasile <[email protected]>

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Signed-off-by: Alexandru Vasile <[email protected]>
Co-authored-by: Davide Galassi <[email protected]>
Co-authored-by: parity-processbot <>