Added build script for utf8proc for python3.14 with ubi 10.2

[shivansh-ibm]

Checklist

• Have you checked and followed all the points mention in the CONTRIBUTING.MD
• Have you validated script on UBI 9 container
• Did you run the script(s) on fresh container with set -e option enabled and observe success ?
• Did you have Legal approvals for patch files ?

[prathamesh-ibm]

Use python3.14 -m pip install setuptools instead of pip3.14 install setuptools to fix the gha build failure.
https://github.com/ppc64le/build-scripts/actions/runs/33624677436/job/100230254747?pr=8726#:~:text=temp_build_script.sh%3A%20line,utf8proc_ubi_10.2.sh%20v2.6.1

[shivansh-ibm]

The package build is passing successfully on UBI 10.2. However, during the test phase, the script fails to find the libutf8proc.so file. These files are generated under the utf8proc/lib64 directory during the utf8proc build.

The current pyproject.toml that we download using wget does not include the lib64 directory in the wheel package. As a result, the built wheel don't have libutfproc.so with current pyproject.toml

I have updated the pyproject.toml to include the lib64 directory as part of the wheel package. Once the PR is merged, the test script should work as expected.