[PWGEM/Dilepton] update event producer for ZDC

[dsekihat]

[PWGEM/Dilepton] update event producer for ZDC

[github-actions]

O2 linter results: ❌ 2 errors, ⚠️ 25 warnings, 🔕 0 disabled

[alibuild]

Auto-approving on behalf of @dsekihat.

[alibuild]

Error while checking build/O2Physics/code-check for d759c58 at 2026-08-25 01:16:

## sw/BUILD/O2Physics-code-check-latest/log
--
========== List of issues found ==========
++ echo 'Found 2 errors and 3 warnings.'
Found 2 errors and 3 warnings.
++ [[ 2 -gt 0 ]]
++ cat /sw/BUILD/8598d13e5f2099fb1b58d52e8490f475912fc682/O2Physics-code-check/errors.txt
PWGEM/Dilepton/TableProducer/createEMEventDilepton.cxx:156:57: error: repeated branch body in conditional chain [bugprone-branch-clone,-warnings-as-errors]
PWGEM/Dilepton/TableProducer/createEMEventDilepton.cxx:197:55: error: repeated branch body in conditional chain [bugprone-branch-clone,-warnings-as-errors]
++ [[ 3 -gt 0 ]]
++ cat /sw/BUILD/8598d13e5f2099fb1b58d52e8490f475912fc682/O2Physics-code-check/warnings.txt
PWGEM/Dilepton/TableProducer/createEMEventDilepton.cxx:113:3: warning: use '= default' to define a trivial destructor [modernize-use-equals-default]
PWGEM/Dilepton/TableProducer/createEMEventDilepton.cxx:148:9: warning: use auto when initializing with a cast to avoid duplicating the type name [modernize-use-auto]
PWGEM/Dilepton/TableProducer/createEMEventDilepton.cxx:180:11: warning: do not use 'else' after 'continue' [readability-else-after-return]
++ [[ 2 -gt 0 ]]
++ exit 1
--

Full log here.

[alibuild]

Error while checking build/O2Physics/staging for d759c58 at 2026-08-25 02:22:

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

Full log here.