Force JetContainer name in NNJvt tool for JetJvtEfficiency tool

Merged Sara Alderweireldt requested to merge salderwe/athena:dev/MR61546_JetJvtEfficiency into master

To enable dual-use SUSYTools (fixing AthAnalysis issues): !61546 (merged)

  • JetJvtEfficiency tool: if not forcing the parent container name, we hit a locked container issue with NNJvt recalculation
  • fix causes warnings to be printed, but output seems sane

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