Fix TF-text for TF 2.20.

[copybara-service]

Fix TF-text for TF 2.20.

This is a combination of a collection of changes to fix the TF-text build. All are required
for a successful build.

1. Upgrade ICU to v77.1
   • Requires changes to ICU build file, updating ICU data, updating test goldens
   • Added custom_http_archive rule to allow excluding files.
2. Replace tensorflow.bzl:pybind_extension with pywrap.bzl:pybind_extension, pywrap_libraries, pywrap_binaries
   • Forces creation of pybind bundled .so file to include in the wheel.
3. Patch TF build file to exclude libtensorflow_framework source files.
   • Avoids ODR issues causing double-registrations.
4. Update requirements files
   • TF 3.9, 3.10 are somewhat fundamentally broken because of tensorflow-metadata,
     which restricts the protobuf version below what TF requires. Though this turns out
     not to be a hard requirement, by skipping the requirements.update in configure and manually
     setting package versions, we can create a successful build.
5. Replace the build_pip_package.sh with a python version
   • Allows using the hermetic python toolchain to build the wheel. Avoids the need for docker.
6. Fix random missing deps.