MuonCondAlg: Fix memory leak in NswCalibDbAlg

This MR fixes the massive memory leak in NswCalibDbAlg.

Closes ATLASRECTS-7083 and relates to ATR-25529

Edit: Now the algorithm doesn't do anything if the write handles are still valid so that we don't end up executing unnecessary code in serial jobs.

added bugfix urgent labels

This merge request affects 1 package:

• MuonSpectrometer/MuonConditions/MuonCondGeneral/MuonCondAlg

This merge request affects 1 file:

• MuonSpectrometer/MuonConditions/MuonCondGeneral/MuonCondAlg/src/NswCalibDbAlg.cxx

Adding @stavrop ,@egodden ,@rosati ,@wleight ,@jojungge as watchers

added 22.0 MuonSpectrometer review-pending-level-1 labels

CI Result SUCCESS (hash d82162ec)

	Athena	DetCommon
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view. Check the JIRA CI status board for known problems
Athena: number of compilation errors 0, warnings 0
DetCommon: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 53657]

Changes look good from L1 side - approving.

Jakub (L1 shifter)

added review-approved label and removed review-pending-level-1 label

resolved all threads

added review-approved-tier0 label

added review-approved-point1 label

added 1 commit

• 00bc7281 - More improvements to NswCalibDbAlg

Compare with previous version

resolved all threads

changed the description

This merge request affects 1 package:

• MuonSpectrometer/MuonConditions/MuonCondGeneral/MuonCondAlg

This merge request affects 1 file:

• MuonSpectrometer/MuonConditions/MuonCondGeneral/MuonCondAlg/src/NswCalibDbAlg.cxx

Adding @stavrop ,@egodden ,@rosati ,@wleight ,@jojungge as watchers

added review-pending-level-1 label and removed review-approved review-approved-point1 review-approved-tier0 labels

CI Result SUCCESS (hash 00bc7281)

	Athena	DetCommon
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view. Check the JIRA CI status board for known problems
Athena: number of compilation errors 0, warnings 0
DetCommon: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 53751]

Re-approving after latest changes (which look good as well).

Jakub (L1 shifters)

added review-approved label and removed review-pending-level-1 label

added review-approved-tier0 label

added review-approved-point1 label