Fix build script to use vendored protoc binary for CI

socktop_connector/build.rs

@@ -1,4 +1,10 @@
 fn main() -> Result<(), Box<dyn std::error::Error>> {
+    // Set the protoc binary path to use the vendored version for CI compatibility
+    // SAFETY: We're only setting PROTOC in a build script environment, which is safe
+    unsafe {
+        std::env::set_var("PROTOC", protoc_bin_vendored::protoc_bin_path()?);
+    }
+    
     prost_build::compile_protos(&["processes.proto"], &["."])?;
     Ok(())
 }