Python 3 fixes for web display generation

Fix DQWebDisplay

This merge request affects 1 package:

• DataQuality/DataQualityConfigurations

added DQ master review-pending-level-1 labels

CI Result SUCCESS (hash bba270ea)

	Athena	AthSimulation	AthGeneration	AnalysisBase
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 18934]

Code changes look fine, approving. Pienpen (L1)

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

merged

mentioned in commit 7ac73189

added sweep:ignore label