[PWGHF] Add MC processing support to UPC Lc task

[Rrantu]

This PR adds MC support to taskUpcLc. It creates MC output tables with matching info, and lets the MC workflow run when ZDC info is missing.

[github-actions]

O2 linter results: ❌ 0 errors, ⚠️ 0 warnings, 🔕 0 disabled

[alibuild]

Error while checking build/O2Physics/code-check for 7275a53 at 2026-09-11 10:57:

## sw/BUILD/O2Physics-code-check-latest/log
--
========== List of issues found ==========
++ echo 'Found 1 errors and 0 warnings.'
Found 1 errors and 0 warnings.
++ [[ 1 -gt 0 ]]
++ cat /sw/BUILD/95f6da35acdcc08519269c7d42b7e3340d583cc5/O2Physics-code-check/errors.txt
PWGHF/D2H/Tasks/taskUpcLc.cxx:82:52: error: no header providing "int8_t" is directly included [misc-include-cleaner,-warnings-as-errors]
++ [[ 0 -gt 0 ]]
++ [[ 1 -gt 0 ]]
++ exit 1
--

Full log here.

[vkucera]

@zhangbiao-phy Do not enable auto-merge if a PR has not passed the tests yet.

[vkucera]

@Rrantu Please fix the error.

[alibuild]

Error while checking build/O2Physics/staging for 298d0f8 at 2026-09-11 12:31:

No log files found

Full log here.

[alibuild]

Error while checking build/O2Physics/o2 for 298d0f8 at 2026-09-13 11:01:

## sw/BUILD/O2Physics-latest/log
c++: fatal error: Killed signal terminated program cc1plus
ninja: build stopped: subcommand failed.

Full log here.