Adjust configure.sh to silence another set of protobuf compilation warnings (#1043)

Compilation with gcc 15.2 on Debian Linux results in some warnings
coming from the Protobuf library:

```
inlined from 'bool google::protobuf::MessageLite::SerializePartialToZeroCopyStream(google::protobuf::io::ZeroCopyOutputStream*) const' at external/com_google_protobuf/src/google/protobuf/message_lite.cc:411:30:
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:29:33: warning: 'void* __builtin___memcpy_chk(void*, const void*, long unsigned int, long unsigned int)' specified size between 18446744071562067968 and 18446744073709551615 exceeds maximum object size 9223372036854775807 [-Wstringop-overflow=]
   29 |   return __builtin___memcpy_chk (__dest, __src, __len,
      |          ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
   30 |                                  __glibc_objsize0 (__dest));
      |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~
```

This is difficult to address directly, so this PR adds a narrowly-scoped
silencing flag to the compilation arguments.

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: mhucka

configure.sh

@@ -244,6 +244,8 @@ write_bazelrc 'build --per_file_copt=external/.*[.]c$@-Wno-deprecated-non-protot
 write_bazelrc 'build --host_per_file_copt=external/.*[.]c$@-Wno-deprecated-non-prototype'
 write_bazelrc "build --per_file_copt=external/com_google_protobuf/.*@-Wno-unused-function"
 write_bazelrc "build --host_per_file_copt=external/com_google_protobuf/.*@-Wno-unused-function"
+write_bazelrc "build --per_file_copt=external/com_google_protobuf/.*@-Wno-stringop-overflow"
+write_bazelrc "build --host_per_file_copt=external/com_google_protobuf/.*@-Wno-stringop-overflow"
 write_bazelrc "build --per_file_copt=external/eigen/.*@-Wno-maybe-uninitialized"
 write_bazelrc "build --host_per_file_copt=external/eigen/.*@-Wno-maybe-uninitialized"