Fix problems with ART tests in master, r 22

See merge request !39326

Fix the analyses for the EF bjet tests

See merge request atlas/athena!39329

CalibrationDataInterface: Fix gcc11 warning.

See merge request atlas/athena!39331

update Gaudi version to v35r0.002

See merge request atlas/athena!39255

MuonEfficiencyCorrections: Fix gcc11 warning.

See merge request atlas/athena!39330

TrkExTools: Fix memory leak.

See merge request atlas/athena!39334

TrigT2CaloEgamma+TrigTauEmulation: Fix gcc11 warning.

See merge request atlas/athena!39333

TrigMonitorBase: Fix compilation with gcc11.

See merge request atlas/athena!39332

InDetTrackSelectorTool+InDetSecVxFinderTool: Fix clang warnings

See merge request !39335

JetMomentTools Calibration File Fixes, master branch (2020.12.19.)

See merge request !39341

Hepmc3 nightly fixes 17122020 part 2

See merge request !39295

ATLASRECTS-5201: DL1 double -> float encore

See merge request !39327

AthenaKernel: Fix a typo in comments.

See merge request !39318

Distance  solution, move inline to .icc and use default.

See merge request !39328

TrigTauHypo: Fix gcc11 warnings.

See merge request !39317

The hash used to decide if the externals have to be rebuild only
considered the first entry of `EXTRACMAKE`. All others (e.g. the new
Gaudi version argument) were ignored.

Missing override keywords.

Missing override keywords.

In extrapolateStepwiseImpl, we need to delete the parameters
in cache.m_parametersOnDetElements if we don't return them.

Misleading indentation.

Misleading indentation.

Can't use full template-id as a ctor name with c++20.

Null pointer dereference.

Basic cut and paste schoolboy error copying the bjet tests from
muon tests, and then forgetting to change the chains.

This fixes it

Check result of dynamic_cast before dereferencing.

Move to LCG_98python3_ATLAS_3

See merge request !39138

Externals Update, master branch (2020.12.15.)

See merge request atlas/athena!39215

Distance  solution, move inline to .icc and use default. Also fix SCT_Digitization to used std::log, std::sqrt

remove dynamic variables from L2StandAloneMuon for Run2 trigger

See merge request atlas/athena!39305

Revert "Merge branch 'DistanceSolution_default_move_inline_to_icc' into 'master'"

See merge request atlas/athena!39323

This reverts merge request !39259

vec.h use prefix increment for fallback type

See merge request atlas/athena!39298

EgammaFourMomBuilder some flake8 fixes. Quite few more remain

See merge request atlas/athena!39297

TrigBphysHypo: Fix gcc11 warning.

See merge request !39303