feat(zkstack_cli): Build dependencies at zkstack build time (#3157)

## What ❔

<!-- What are the changes this PR brings about? -->
<!-- Example: This PR adds a PR template to the repo. -->
<!-- (For bigger PRs adding more context is appreciated) -->
Build dependencies (e.g., `yarn install`) at `zkstack` build time.

## Why ❔

<!-- Why are these changes done? What goal do they contribute to? What
are the principles behind them? -->
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iterators are in context about the evolution of repos. -->

## Checklist

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- [x] PR title corresponds to the body of PR (we generate changelog
entries from PRs).
- [x] Tests for the changes have been added / updated.
- [x] Documentation comments have been added / updated.
- [x] Code has been formatted via `zkstack dev fmt` and `zkstack dev
lint`.

zkstack_cli/crates/zkstack/Cargo.toml

@@ -55,4 +55,5 @@ anyhow.workspace = true
 clap_complete.workspace = true
 dirs.workspace = true
 ethers.workspace = true
+xshell.workspace = true
 zksync_protobuf_build.workspace = true

zkstack_cli/crates/zkstack/build.rs

@@ -2,6 +2,7 @@ use std::path::{Path, PathBuf};
 
 use anyhow::{anyhow, Context};
 use ethers::contract::Abigen;
+use xshell::{cmd, Shell};
 
 const COMPLETION_DIR: &str = "completion";
 
@@ -14,6 +15,11 @@ fn main() -> anyhow::Result<()> {
         .write_to_file(outdir.join("consensus_registry_abi.rs"))
         .context("Failed to write ABI to file")?;
 
+    if let Err(e) = build_dependencies() {
+        println!("cargo:error=It was not possible to install projects dependencies");
+        println!("cargo:error={}", e);
+    }
+
     if let Err(e) = configure_shell_autocompletion() {
         println!("cargo:warning=It was not possible to install autocomplete scripts. Please generate them manually with `zkstack autocomplete`");
         println!("cargo:error={}", e);
@@ -130,3 +136,14 @@ impl ShellAutocomplete for clap_complete::Shell {
         Ok(())
     }
 }
+
+fn build_dependencies() -> anyhow::Result<()> {
+    let shell = Shell::new()?;
+    let code_dir = Path::new("../");
+
+    let _dir_guard = shell.push_dir(code_dir);
+
+    cmd!(shell, "yarn install")
+        .run()
+        .context("Failed to install dependencies")
+}