Merge branch 'maksym-ic-admin-set-btc-config' into 'master'

fix: add ProposeToSetBitcoinConfig to ic-admin

This MR fixes running `ic-admin` with secret key or HSM.

Without this change running the following command would fail.
```shell
$ bazel run //rs/registry/admin:ic-admin -- \
        --use-hsm \
        --key-id 01 \
        --slot 0 \
        --pin "$dfx_hsm_pin" \
        --nns-url "https://ic0.app" \
        propose-to-set-bitcoin-config \
        ...

INFO: Build completed successfully, 2 total actions
thread 'main' panicked at 'Specifying a secret key or HSM is only supported for methods that interact with NNS handlers.', rs/registry/admin/src/main.rs:4349:18
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
``` 

See merge request dfinity-lab/public/ic!13215

rs/registry/admin/src/main.rs

@@ -4339,6 +4339,7 @@ async fn main() {
             SubCommand::ProposeToAddHostOsVersion(_) => (),
             SubCommand::ProposeToManageHostOsVersion(_) => (),
             SubCommand::ProposeToCreateServiceNervousSystem(_) => (),
+            SubCommand::ProposeToSetBitcoinConfig(_) => (),
             _ => panic!(
                 "Specifying a secret key or HSM is only supported for \
                      methods that interact with NNS handlers."