chore(blockifier): use the suggested test util for cargo manifest dir…

… in cairo compile

crates/blockifier/Cargo.toml

@@ -33,6 +33,7 @@ cairo-vm.workspace = true
 derive_more.workspace = true
 indexmap.workspace = true
 itertools.workspace = true
+infra_utils.workspace = true
 keccak.workspace = true
 log.workspace = true
 num-bigint.workspace = true

crates/blockifier/src/test_utils/cairo_compile.rs

@@ -1,9 +1,10 @@
 use std::io::Write;
-use std::path::{Path, PathBuf};
+use std::path::PathBuf;
 use std::process::{Command, Output};
 use std::{env, fs};
 
 use cached::proc_macro::cached;
+use infra_utils::path::cargo_manifest_dir;
 use serde::{Deserialize, Serialize};
 use tempfile::NamedTempFile;
 
@@ -69,9 +70,7 @@ pub fn cairo1_compiler_tag() -> String {
 /// overridden by the environment variable (otherwise, the default is used).
 fn local_cairo1_compiler_repo_path() -> PathBuf {
     // Location of blockifier's Cargo.toml.
-    let manifest_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
-
-    Path::new(&manifest_dir).join(
+    cargo_manifest_dir().unwrap().join(
         env::var(CAIRO1_REPO_RELATIVE_PATH_OVERRIDE_ENV_VAR)
             .unwrap_or_else(|_| DEFAULT_CAIRO1_REPO_RELATIVE_PATH.into()),
     )