bump tonic, tonic-build to 0.13.0, set msrv to 1.75

[SuperFluffy]

This patch updates tonic to 0.13.0 and sets the minimal supported rust version to 1.75, which is also reflected in rust-toolchain and all workflow files.

A new release of cosmos-sdk-proto and cosmrs would require a bump in the major version to 0.27 and 0.22 respectively because the dependencies are part of the public API.

I am not sure what the workflow of this project is - if desired I can bump the versions here or in a followup PR.

A timely release would be very much appreciated because I am in the process of updating a couple of fundamental dependencies over at penumbra and astria. :-)

NOTE: I did bump prost-build and ran it as cd prost-build && cargo run, but it seemingly did not update any of the generated code (which of course leads to compilation errors).

Not completely sure if that's a me-error or what's going on here.

The problem is that this crate relies on the neoeinstein-tonic plugin. I will try and get a tonic version bump upstreamed.

PR to update protoc-gen-tonic: neoeinstein/protoc-gen-prost#119

[SuperFluffy]

PR into neoeinstein/prost-gen-prost: neoeinstein/protoc-gen-prost#119

[tony-iqlusion]

@SuperFluffy if you can regen using a local copy of neoeinstein/prost-gen-prost we can potentially get this merged

[SuperFluffy]

@tony-iqlusion gotcha, good to know. Let me figure out how to run buf using a local fork.

[SuperFluffy]

@tony-iqlusion Done and pushed to b590568. Steps to reproduce:

# Compile a local copy of protoc-gen-tonic
$ git clone https://github.com/neoeinstein/protoc-gen-prost \
&& cd protoc-gen-prost \
&& git fetch origin pull/119/head:bump-tonic \
&& git switch bump-tonic \
&& cargo build --release -p protoc-gen-tonic

Then change the contents of proto-build/buf.sdk.gen.yaml to point to the local artifact:

version: v1
plugins:
  - plugin: buf.build/community/neoeinstein-prost:v0.3.1
    out: .
    opt:
      - compile_well_known_types
      - enable_type_names
      - extern_path=.google.protobuf=::tendermint_proto::google::protobuf
      - extern_path=.tendermint=::tendermint_proto
  - plugin: buf.build/community/neoeinstein-prost-serde:v0.3.0
    out: .
  # - plugin: buf.build/community/neoeinstein-tonic:v0.3.0
  - plugin: tonic
    path: /home/superfluffy/protoc-gen-prost/target/release/protoc-gen-tonic
    out: .

Then regenerate the files as cd proto-build && cargo run

[SuperFluffy]

Looks like wasmd needed a similar treatment, which I overlooked and fixed with the latest commit. Apologies for that.