[ALICE3] Fix production time for daughters from cascade decays in a3 decayer

[jesgum]

No description provided.

[github-actions]

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

[alibuild]

Auto-approving on behalf of @jesgum.

[alibuild]

Error while checking build/O2Physics/code-check for 5e174ee at 2026-07-07 15:20:

## sw/BUILD/O2Physics-code-check-latest/log
--
========== List of issues found ==========
++ echo 'Found 6 errors and 0 warnings.'
Found 6 errors and 0 warnings.
++ [[ 6 -gt 0 ]]
++ cat /sw/BUILD/5b6d6762eaae34b21b60f7d8d1ff474a304b09c7/O2Physics-code-check/errors.txt
ALICE3/TableProducer/OTF/onTheFlyDecayer.cxx:52:18: error: do not declare C-style arrays, use 'std::array' instead [modernize-avoid-c-arrays,-warnings-as-errors]
ALICE3/TableProducer/OTF/onTheFlyDecayer.cxx:75:8: error: constructor does not initialize these fields: pdgDB [cppcoreguidelines-pro-type-member-init,-warnings-as-errors]
ALICE3/TableProducer/OTF/onTheFlyDecayer.cxx:87:50: error: do not implicitly decay an array into a pointer; consider using gsl::array_view or an explicit cast instead [cppcoreguidelines-pro-bounds-array-to-pointer-decay,-warnings-as-errors]
ALICE3/TableProducer/OTF/onTheFlyDecayer.cxx:102:11: error: implicit conversion 'int' -> 'bool' [readability-implicit-bool-conversion,-warnings-as-errors]
ALICE3/TableProducer/OTF/onTheFlyDecayer.cxx:149:26: error: narrowing conversion from 'Double_t' (aka 'double') to 'int' [bugprone-narrowing-conversions,-warnings-as-errors]
ALICE3/TableProducer/OTF/onTheFlyDecayer.cxx:151:12: error: implicit conversion 'int' -> 'bool' [readability-implicit-bool-conversion,-warnings-as-errors]
++ [[ 0 -gt 0 ]]
++ [[ 6 -gt 0 ]]
++ exit 1
--

Full log here.