update protobuf version to 6.32.1 that works (#3145)

Author: cj401-amd

tensorflow/tools/tf_sig_build_dockerfiles/devel.requirements.txt

@@ -15,7 +15,7 @@ ml_dtypes ~= 0.5.1 # Earliest version with mxfloat types
 numpy ~= 1.26.0
 opt_einsum ~= 3.3.0
 packaging ~= 23.2
-protobuf ~= 3.20.3
+protobuf ~= 6.32.1
 six ~= 1.16.0
 termcolor ~= 2.1.1
 typing_extensions ~= 4.8.0