[llvm] Replace distutils.version with looseversion since the former was deprecated in python 3.10 and removed in 3.12. (PR #99549)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-clang-x86_64-gcc-ubuntu` running on `sie-linux-worker3` while building `cross-project-tests` at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/174/builds/2014

Here is the relevant piece of the build log for the reference:
```
Step 6 (test-build-unified-tree-check-all) failure: test (failure)
...
llvm-lit: /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/utils/lit/lit/llvm/config.py:508: note: using split-file: /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/split-file
llvm-lit: /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/utils/lit/lit/llvm/config.py:508: note: using yaml2obj: /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/yaml2obj
llvm-lit: /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/utils/lit/lit/llvm/config.py:508: note: using llvm-objcopy: /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llvm-objcopy
llvm-lit: /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/utils/lit/lit/TestingConfig.py:152: fatal: unable to parse config file '/home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/cross-project-tests/lit.cfg.py', traceback: Traceback (most recent call last):
  File "/home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/utils/lit/lit/TestingConfig.py", line 140, in load_from_path
    exec(compile(data, path, "exec"), cfg_globals, None)
  File "/home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/cross-project-tests/lit.cfg.py", line 7, in <module>
    from looseversion import LooseVersion
ModuleNotFoundError: No module named 'looseversion'

FAILED: CMakeFiles/check-all /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/CMakeFiles/check-all 
cd /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build && /usr/bin/python3.8 /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/./bin/llvm-lit --verbose --param USE_Z3_SOLVER=0 /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/utils/mlgo-utils /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/projects/cross-project-tests /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/tools/lld/test /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/tools/clang/tools/extra/include-cleaner/test /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/tools/clang/tools/extra/pseudo/test /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/tools/clang/tools/extra/test /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/tools/clang/test @/home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/runtimes/runtimes-bins/lit.tests /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/utils/lit /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/test
ninja: build stopped: subcommand failed.

```

https://github.com/llvm/llvm-project/pull/99549