Update tendermint-proto requirement from =0.21.0 to =0.23.1 in /proto

[dependabot]

Updates the requirements on tendermint-proto to permit the latest version.

Release notes

Sourced from tendermint-proto's releases.

v0.23.1

📖 CHANGELOG

Changelog

Sourced from tendermint-proto's changelog.

v0.23.1

Nov 15, 2021

Minor bug fixes.

BUG FIXES

• [tools/proto-compiler] Fixed our proto-compiler, which was producing protos that did not compile due to an incorrect Prost field annotation (#1014)
• [tendermint] The tendermint::node::Id Display implementation now prints the hexadecimal string in lowercase (#971)

v0.23.0

Oct 27, 2021

The main changes in this release involve upgrading to Prost v0.9 and some foundational changes to prepare for no_std support for some of our crates.

One of the main no_std-related changes in this release was to break out configuration-related data structures from the tendermint crate into their own crate (tendermint-config) as these structures depend on other crates which do not yet support no_std.

BREAKING CHANGES

• Upgraded Prost to the official v0.9 release to finally resolve the security issue introduced by v0.7 (#925)
• [tendermint, tendermint-config] The tendermint::config module has now been broken out into its own crate (tendermint- config) to help towards facilitating no_std compatibility (#983)
• [tendermint] The tendermint::node::info::OtherInfo::rpc_address field type has been changed from tendermint::net::Address to String toward facilitating no_std compatibility (#983)
• [tendermint] The tendermint::node::info::ListenAddress::to_net_address method was replaced with a simple as_str method toward facilitating no_std compatibility ([Graceful handling of packet events in the presence of multiple relayers informalsystems/hermes#983](https://github.com/informalsystems/tendermint- rs/issues/983))

FEATURES

• [tendermint-rpc] Add support for the /block_search RPC endpoint. See https://docs.tendermint.com/master/rpc/\#/Info/block_search for details

... (truncated)

Commits

• 5100aed Release v0.23.1 (#1019)
• 9690eca ci: Update coverage check (#1017)
• c75a947 lowercase hex node ID (#1016)
• 60e1a0a tools: Fix proto compiler (#1015)
• 858b577 Release v0.23.0 (#1013)
• 5bf6bae Use core and alloc crates for no_std compatibility (Take 2) (#993)
• ce55f22 Update to official Prost v0.9 (#1011)
• 7637b2f Bump version to 0.23.0-internal (#1009)
• 1ab5e86 Move out tendermint::config to tendermint-config crate (#986)
• e3e4c88 meta: Adopt forked prost crates (#1005)
• Additional commits viewable in compare view

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[dependabot]

Superseded by #124.