Make GRPC and WS URLs for cosmos optional (#511) · ComposableFi/composable-ibc@fa46171

`#[diagnostic]` attribute name space is experimental

`#[diagnostic]` attribute name space is experimental

could not compile `serde` (lib) due to 2 previous errors

failed to compile `cargo-udeps v0.1.50`, intermediate artifacts can be found at `/tmp/cargo-installPeLam8`.

The process '/usr/local/cargo/bin/cargo' failed with exit code 101

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, actions-rs/cargo@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

The following actions use a deprecated Node.js version and will be forced to run on node20: actions/checkout@v2, arduino/setup-protoc@v1, actions-rs/cargo@v1. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/