deps: Bump `com_github_google_libprotobuf_mutator` -> 1.3

[phlax]

Fix #31861

Commit Message: Additional Description: Risk Level: Testing: Docs Changes: Release Notes: Platform Specific Features: [Optional Runtime guard:] [Optional Fixes #Issue] [Optional Fixes commit #PR or SHA] [Optional Deprecated:] [Optional API Considerations:]

[repokitteh-read-only[bot]]

CC @envoyproxy/dependency-shepherds: Your approval is needed for changes made to (bazel/.*repos.*\.bzl)|(bazel/dependency_imports\.bzl)|(api/bazel/.*\.bzl)|(.*/requirements\.txt)|(.*\.patch). envoyproxy/dependency-shepherds assignee is @RyanTheOptimist

:cat:

Caused by: https://github.com/envoyproxy/envoy/pull/32543 was opened by phlax.

see: more, trace.

[phlax]

external/com_github_google_libprotobuf_mutator/src/field_instance.h:198:21: error: no matching function for call to 'StrCat'
    std::string s = absl::StrCat(*descriptor_);

i think we hit this previously elsewhere - trying to rem the reason

[RyanTheOptimist]

/wait on CI

[github-actions[bot]]

This pull request has been automatically marked as stale because it has not had activity in the last 30 days. It will be closed in 7 days if no further activity occurs. Please feel free to give a status update now, ping for review, or re-open when it's ready. Thank you for your contributions!

[github-actions[bot]]

This pull request has been automatically closed because it has not had activity in the last 37 days. Please feel free to give a status update now, ping for review, or re-open when it's ready. Thank you for your contributions!