Update WORKSPACE

Author: jagapiou

WORKSPACE

@@ -46,6 +46,13 @@ http_archive(
     urls = ["https://github.com/abseil/abseil-py/archive/main.zip"],
 )
 
+http_archive(
+    name = "com_google_protobuf",
+    sha256 = "3d32940e975c4ad9b8ba69640e78f5527075bae33ca2890275bf26b853c0962c",
+    strip_prefix = "protobuf-29.1",
+    url = "https://github.com/protocolbuffers/protobuf/releases/download/v29.1/protobuf-29.1.tar.gz",
+)
+
 http_archive(
     name = "eigen_archive",
     build_file = "@//bazel:eigen.BUILD",