PWGHF: add more checks for collision association

[fgrosa]

No description provided.

[alibuild]

Error while checking build/O2Physics/o2 for 6dd1f73 at 2022-08-10 11:27:

## sw/BUILD/O2Physics-latest/log
/sw/slc7_x86-64/O2/nightly-20220810-1/include/Framework/AnalysisTask.h:623:77: error: binding reference of type 'o2::framework::AxisSpec&' to 'const o2::framework::AxisSpec' discards qualifiers
/sw/slc7_x86-64/O2/nightly-20220810-1/include/Framework/StructToTuple.h:361:11: error: no matching function for call to 'std::vector<bool>::vector(<brace-enclosed initializer list>)'
/sw/slc7_x86-64/O2/nightly-20220810-1/include/Framework/AnalysisTask.h:635:109: error: binding reference of type 'o2::framework::AxisSpec&' to 'const o2::framework::AxisSpec' discards qualifiers
/sw/slc7_x86-64/O2/nightly-20220810-1/include/Framework/StructToTuple.h:361:11: error: no matching function for call to 'std::vector<bool>::vector(<brace-enclosed initializer list>)'
/sw/slc7_x86-64/O2/nightly-20220810-1/include/Framework/AnalysisTask.h:641:103: error: binding reference of type 'o2::framework::AxisSpec&' to 'const o2::framework::AxisSpec' discards qualifiers
/sw/slc7_x86-64/O2/nightly-20220810-1/include/Framework/StructToTuple.h:361:11: error: no matching function for call to 'std::vector<bool>::vector(<brace-enclosed initializer list>)'
/sw/slc7_x86-64/O2/nightly-20220810-1/include/Framework/AnalysisTask.h:615:99: error: binding reference of type 'o2::framework::AxisSpec&' to 'const o2::framework::AxisSpec' discards qualifiers
/sw/slc7_x86-64/O2/nightly-20220810-1/include/Framework/AnalysisTask.h:619:95: error: binding reference of type 'o2::framework::AxisSpec&' to 'const o2::framework::AxisSpec' discards qualifiers
/sw/slc7_x86-64/GCC-Toolchain/v10.2.0-alice2-9/include/c++/10.2.0/bits/std_function.h:601:7: error: 'std::function<_Res(_ArgTypes ...)>::function(_Functor) [with _Functor = o2::framework::adaptAnalysisTask<ValidationRecLevel, {o2::framework::TaskName}>::<lambda(o2::framework::InitContext&)>; <template-parameter-2-2> = void; <template-parameter-2-3> = void; _Res = std::function<void(o2::framework::ProcessingContext&)>; _ArgTypes = {o2::framework::InitContext&}]', declared using local type 'o2::framework::adaptAnalysisTask<ValidationRecLevel, {o2::framework::TaskName}>::<lambda(o2::framework::InitContext&)>', is used but never defined [-fpermissive]
ninja: build stopped: subcommand failed.

Full log here.