[PWGCF] Flow-decorr added TPC-FT0A MC-True option

[lcernusa]

No description provided.

[github-actions]

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

[alibuild]

Error while checking build/O2Physics/o2 for 554c8de at 2026-04-16 17:25:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGCF/TwoParticleCorrelations/Tasks/flowDecorrelation.cxx:158:55: error: 'PIHalf' was not declared in this scope; did you mean 'o2::constants::math::PIHalf'?
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGCF/TwoParticleCorrelations/Tasks/flowDecorrelation.cxx:158:63: error: 'PIHalf' was not declared in this scope; did you mean 'o2::constants::math::PIHalf'?
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGCF/TwoParticleCorrelations/Tasks/flowDecorrelation.cxx:158:107: error: could not convert '{"axisDeltaPhi", {72, <expression error>, <expression error>}, "delta phi axis for histograms"}' from '<brace-enclosed initializer list>' to 'o2::framework::ConfigurableAxis' {aka 'o2::framework::Configurable<std::vector<double>, o2::framework::kAxisSpec, o2::framework::ConfigurablePolicyConst<std::vector<double>, o2::framework::kAxisSpec> >'}
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGCF/TwoParticleCorrelations/Tasks/flowDecorrelation.cxx:801:73: error: 'PIHalf' was not declared in this scope; did you mean 'o2::constants::math::PIHalf'?
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGCF/TwoParticleCorrelations/Tasks/flowDecorrelation.cxx:866:72: error: 'PIHalf' was not declared in this scope; did you mean 'o2::constants::math::PIHalf'?
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGCF/TwoParticleCorrelations/Tasks/flowDecorrelation.cxx:920:73: error: 'PIHalf' was not declared in this scope; did you mean 'o2::constants::math::PIHalf'?
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGCF/TwoParticleCorrelations/Tasks/flowDecorrelation.cxx:1483:82: error: 'PIHalf' was not declared in this scope; did you mean 'o2::constants::math::PIHalf'?
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGCF/TwoParticleCorrelations/Tasks/flowDecorrelation.cxx:1763:82: error: 'PIHalf' was not declared in this scope; did you mean 'o2::constants::math::PIHalf'?
/sw/slc9_x86-64/O2/daily-20260416-0000-local1/include/Framework/StructToTuple.h:141:38: error: static assertion failed: You need to make sure that you have implicit constructors or that you call the explicit constructor correctly.
/sw/slc9_x86-64/GCC-Toolchain/v14.2.0-alice2-1/include/c++/14.2.0/bits/stl_construct.h:115:28: error: no matching function for call to 'construct_at(FlowDecorrelation*&)'
ninja: build stopped: subcommand failed.

Full log here.